Mercurial > hg > nginx-site
annotate xml/en/docs/njs/reference.xml @ 2663:a33d8f0f48b2
Documented r.done and r.sendBuffer in njs Reference.
author | Yaroslav Zhuravlev <yar@nginx.com> |
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date | Thu, 04 Mar 2021 12:56:02 +0000 |
parents | 9fc25ea7a92c |
children | 529114f1108a |
rev | line source |
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1 <?xml version="1.0"?> |
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2 |
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3 <!-- |
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4 Copyright (C) Nginx, Inc. |
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5 --> |
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6 |
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7 <!DOCTYPE article SYSTEM "../../../../dtd/article.dtd"> |
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8 |
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9 <article name="Reference" |
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10 link="/en/docs/njs/reference.html" |
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11 lang="en" |
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12 rev="62"> |
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13 |
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14 <section id="summary"> |
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15 |
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16 <para> |
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17 <link doc="index.xml">njs</link> provides objects, methods and properties |
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18 for extending nginx functionality. |
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19 </para> |
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20 |
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21 <para> |
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22 This reference contains only njs specific properties, methods and modules |
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23 not compliant with ECMAScript. |
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24 Definitions of njs properties and methods compliant with ECMAScript |
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25 can be found in |
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26 <link url="http://www.ecma-international.org/ecma-262/">ECMAScript |
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27 specification</link>. |
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28 List of all njs properties and methods can be found in |
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29 <link doc="compatibility.xml">Compatibility</link>. |
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30 </para> |
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31 |
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32 </section> |
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33 |
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34 |
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35 <section id="http_stream" name="nginx objects"> |
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36 |
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37 |
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38 <section id="http" name="HTTP Request"> |
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39 |
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40 <para> |
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41 The HTTP request object is available only in the |
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42 <link doc="../http/ngx_http_js_module.xml">ngx_http_js_module</link> module. |
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43 All string properties of the object are |
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44 <link id="string">byte strings</link>. |
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45 |
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46 <list type="tag"> |
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47 |
2353 | 48 <tag-name id="r_args"><literal>r.args{}</literal></tag-name> |
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49 <tag-desc> |
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50 request arguments object, read-only |
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51 </tag-desc> |
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52 |
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53 <tag-name id="r_done"><literal>r.done()</literal></tag-name> |
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54 <tag-desc> |
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55 after calling this function, |
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56 next data chunks will be passed to client without calling |
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57 <link doc="../http/ngx_http_js_module.xml" id="js_body_filter"/> |
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58 (<link doc="changes.xml" id="njs0.5.2">0.5.2</link>). |
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59 May be called only from the |
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60 <link doc="../http/ngx_http_js_module.xml" id="js_body_filter"/> function |
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61 </tag-desc> |
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62 |
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63 <tag-name id="r_error"><literal>r.error(<value>string</value>)</literal></tag-name> |
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64 <tag-desc> |
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65 writes a <literal>string</literal> to the error log |
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66 on the <literal>error</literal> level of logging |
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67 </tag-desc> |
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68 |
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69 <tag-name id="r_finish"><literal>r.finish()</literal></tag-name> |
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70 <tag-desc> |
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71 finishes sending a response to the client |
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72 </tag-desc> |
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73 |
2353 | 74 <tag-name id="r_headers_in"><literal>r.headersIn{}</literal></tag-name> |
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75 <tag-desc> |
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76 incoming headers object, read-only. |
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77 <para> |
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78 The <literal>Foo</literal> request header |
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79 can be accessed with the syntax: |
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80 <literal>headersIn.foo</literal> or <literal>headersIn['Foo']</literal>. |
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81 </para> |
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82 |
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83 <para> |
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84 The |
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85 <header>Authorization</header>, |
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86 <header>Content-Length</header>, |
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87 <header>Content-Range</header>, |
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88 <header>Content-Type</header>, |
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89 <header>ETag</header>, |
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90 <header>Expect</header>, |
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91 <header>From</header>, |
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92 <header>Host</header>, |
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93 <header>If-Match</header>, |
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94 <header>If-Modified-Since</header>, |
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95 <header>If-None-Match</header>, |
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96 <header>If-Range</header>, |
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97 <header>If-Unmodified-Since</header>, |
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98 <header>Max-Forwards</header>, |
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99 <header>Proxy-Authorization</header>, |
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100 <header>Referer</header>, |
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101 <header>Transfer-Encoding</header>, and |
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102 <header>User-Agent</header> |
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103 request headers can have only one field value |
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104 (<link doc="changes.xml" id="njs0.4.1">0.4.1</link>). |
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105 Duplicate field values in <header>Cookie</header> headers |
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106 are separated by semicolon (<literal>;</literal>). |
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107 Duplicate field values in all other request headers are separated by commas. |
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108 </para> |
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109 </tag-desc> |
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110 |
2331 | 111 <tag-name id="r_headers_out"><literal>r.headersOut{}</literal></tag-name> |
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112 <tag-desc> |
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113 outgoing headers object, writable. |
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114 <para> |
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115 The <header>Foo</header> response header |
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116 can be accessed with the syntax: |
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117 <literal>headersOut.foo</literal> or <literal>headersOut['Foo']</literal>. |
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118 </para> |
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119 |
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120 <para> |
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121 Field values of multi-value response headers |
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122 (<link doc="changes.xml" id="njs0.4.0">0.4.0</link>) |
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123 can be set with the syntax: |
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124 <example> |
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125 r.headersOut['Foo'] = ['a', 'b'] |
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126 </example> |
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127 where the output will be: |
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128 <example> |
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129 Foo: a |
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130 Foo: b |
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131 </example> |
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132 All previous field values of the <header>Foo</header> response header |
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133 will be deleted. |
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134 </para> |
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135 |
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136 <para> |
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137 For standard response headers |
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138 that accept only a single field value such as |
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139 <header>Content-Type</header>, |
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140 only the last element of the array will take effect. |
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141 Field values of the <header>Set-Cookie</header> response header |
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142 are always returned as an array. |
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143 Duplicate field values in |
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144 <header>Age</header>, |
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145 <header>Content-Encoding</header>, |
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146 <header>Content-Length</header>, |
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147 <header>Content-Type</header>, |
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148 <header>ETag</header>, |
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149 <header>Expires</header>, |
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150 <header>Last-Modified</header>, |
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151 <header>Location</header>, |
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152 <header>Retry-After</header> |
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153 response headers are ignored. |
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154 Duplicate field values in all other response headers |
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155 are separated by commas. |
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156 </para> |
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157 </tag-desc> |
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158 |
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159 <tag-name id="r_http_version"><literal>r.httpVersion</literal></tag-name> |
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160 <tag-desc> |
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161 HTTP version, read-only |
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162 </tag-desc> |
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163 |
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164 <tag-name id="r_internal_redirect"><literal>r.internalRedirect(<value>uri</value>)</literal></tag-name> |
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165 <tag-desc> |
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166 performs an internal redirect to the specified <literal>uri</literal>. |
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167 If the uri starts with the “<literal>@</literal>” prefix, |
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168 it is considered a named location. |
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169 The actual redirect happens after the handler execution is completed. |
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170 </tag-desc> |
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171 |
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172 <tag-name id="r_log"><literal>r.log(<value>string</value>)</literal></tag-name> |
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173 <tag-desc> |
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174 writes a <literal>string</literal> to the error log |
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175 on the <literal>info</literal> level of logging |
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176 </tag-desc> |
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177 |
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178 <tag-name id="r_method"><literal>r.method</literal></tag-name> |
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179 <tag-desc> |
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180 HTTP method, read-only |
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181 </tag-desc> |
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182 |
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183 <tag-name id="r_parent"><literal>r.parent</literal></tag-name> |
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184 <tag-desc> |
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185 references the parent request object |
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186 </tag-desc> |
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187 |
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188 <tag-name id="r_remote_address"><literal>r.remoteAddress</literal></tag-name> |
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189 <tag-desc> |
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190 client address, read-only |
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191 </tag-desc> |
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192 |
2628 | 193 <tag-name id="r_request_body"><literal>r.requestBody</literal></tag-name> |
194 <tag-desc> | |
195 the property is deprecated since | |
196 <link doc="changes.xml" id="njs0.5.0">0.5.0</link>, | |
197 the <link id="r_request_buffer"><literal>r.requestBuffer</literal></link> or | |
198 <link id="r_request_text"><literal>r.requestText</literal></link> property | |
199 should be used instead. | |
200 </tag-desc> | |
201 | |
202 <tag-name id="r_request_buffer"><literal>r.requestBuffer</literal></tag-name> | |
203 <tag-desc> | |
204 client request body if it has not been written to a temporary file | |
205 (since <link doc="changes.xml" id="njs0.5.0">0.5.0</link>). | |
206 To ensure that the client request body is in memory, | |
207 its size should be limited by | |
208 <link doc="../http/ngx_http_core_module.xml" id="client_max_body_size"/>, | |
209 and a sufficient buffer size should be set using | |
210 <link doc="../http/ngx_http_core_module.xml" id="client_body_buffer_size"/>. | |
211 The property is available only in the | |
212 <link doc="../http/ngx_http_js_module.xml" id="js_content"/> directive. | |
213 </tag-desc> | |
214 | |
215 <tag-name id="r_request_text"><literal>r.requestText</literal></tag-name> | |
216 <tag-desc> | |
217 the same as <link id="r_request_buffer"><literal>r.requestBuffer</literal></link>, | |
218 but returns a <literal>string</literal>. | |
219 Note that | |
220 it may convert bytes invalid in utf8 encoding into the replacement character. | |
221 </tag-desc> | |
222 | |
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223 <tag-name id="r_raw_headers_in"><literal>r.rawHeadersIn{}</literal></tag-name> |
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224 <tag-desc> |
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225 returns an array of key-value pairs |
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226 exactly as they were received from the client |
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227 (<link doc="changes.xml" id="njs0.4.1">0.4.1</link>). |
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228 <para> |
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229 For example, with the following request headers: |
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230 <example> |
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231 Host: localhost |
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232 Foo: bar |
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233 foo: bar2 |
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234 </example> |
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235 the output of <literal>r.rawHeadersIn</literal> will be: |
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236 <example> |
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237 [ |
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238 ['Host', 'localhost'], |
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239 ['Foo', 'bar'], |
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240 ['foo', 'bar2'] |
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241 ] |
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242 </example> |
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243 All <literal>foo</literal> headers |
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244 can be collected with the syntax: |
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245 <example> |
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246 r.rawHeadersIn.filter(v=>v[0].toLowerCase() == 'foo').map(v=>v[1]) |
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247 </example> |
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248 the output will be: |
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249 <example> |
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250 ['bar', 'bar2'] |
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251 </example> |
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252 Header field names are not converted to lower case, |
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253 duplicate field values are not merged. |
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254 </para> |
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255 </tag-desc> |
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256 |
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257 <tag-name id="r_raw_headers_out"><literal>r.rawHeadersOut{}</literal></tag-name> |
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258 <tag-desc> |
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259 returns an array of key-value pairs of response headers |
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260 (<link doc="changes.xml" id="njs0.4.1">0.4.1</link>). |
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261 Header field names are not converted to lower case, |
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262 duplicate field values are not merged. |
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263 </tag-desc> |
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264 |
2628 | 265 <tag-name id="r_response_body"><literal>r.responseBody</literal></tag-name> |
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266 <tag-desc> |
2628 | 267 the property is deprecated since |
268 <link doc="changes.xml" id="njs0.5.0">0.5.0</link>, | |
269 the <link id="r_response_buffer"><literal>r.responseBuffer</literal></link> | |
270 or | |
271 the <link id="r_response_text"><literal>r.responseText</literal></link> | |
272 property | |
273 should be used instead. | |
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274 </tag-desc> |
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275 |
2628 | 276 <tag-name id="r_response_buffer"><literal>r.responseBuffer</literal></tag-name> |
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277 <tag-desc> |
2628 | 278 holds the <link id="r_subrequest">subrequest</link> response body, |
279 read-only | |
280 (since <link doc="changes.xml" id="njs0.5.0">0.5.0</link>). | |
281 The size of <literal>r.responseBuffer</literal> is limited by the | |
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282 <link doc="../http/ngx_http_core_module.xml" id="subrequest_output_buffer_size"/> |
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283 directive. |
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284 </tag-desc> |
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285 |
2628 | 286 <tag-name id="r_response_text"><literal>r.responseText</literal></tag-name> |
287 <tag-desc> | |
288 the same as <link id="r_response_buffer"><literal>r.responseBuffer</literal></link> | |
289 but returns a string | |
290 (since <link doc="changes.xml" id="njs0.5.0">0.5.0</link>). | |
291 Note that | |
292 it may convert bytes invalid in utf8 encoding into the replacement character. | |
293 </tag-desc> | |
294 | |
295 <tag-name id="r_return"><literal>r.return(status[, | |
296 string | Buffer])</literal></tag-name> | |
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297 <tag-desc> |
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298 sends the entire response |
2628 | 299 with the specified <literal>status</literal> to the client. |
300 The response can be a string or Buffer | |
301 (<link doc="changes.xml" id="njs0.5.0">0.5.0</link>). | |
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302 <para> |
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303 It is possible to specify either a redirect URL |
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304 (for codes 301, 302, 303, 307, and 308) |
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305 or the response body text (for other codes) as the second argument |
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306 </para> |
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307 </tag-desc> |
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308 |
2628 | 309 <tag-name id="r_send"><literal>r.send(string |
310 | Buffer)</literal></tag-name> | |
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311 <tag-desc> |
2628 | 312 sends a part of the response body to the client. |
313 The data sent can be a string or Buffer | |
314 (<link doc="changes.xml" id="njs0.5.0">0.5.0</link>) | |
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315 </tag-desc> |
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316 |
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317 <tag-name id="r_sendbuffer"><literal>r.sendBuffer(<value>data</value>[, |
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318 <value>options</value>])</literal></tag-name> |
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319 <tag-desc> |
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320 adds data to the chain of data chunks to be forwarded to the next body filter |
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321 (<link doc="changes.xml" id="njs0.5.2">0.5.2</link>). |
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322 The actual forwarding happens later, |
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323 when the all the data chunks of the current chain are processed. |
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324 <para> |
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325 The data can be a string or Buffer. |
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326 The <literal>options</literal> is an object used |
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327 to override nginx buffer flags derived from an incoming data chunk buffer. |
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328 The flags can be overridden with the following flags: |
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329 <list type="tag"> |
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330 |
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331 <tag-name><literal>last</literal></tag-name> |
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332 <tag-desc> |
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333 boolean, |
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334 true if the buffer is the last buffer |
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335 </tag-desc> |
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336 |
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337 <tag-name><literal>flush</literal></tag-name> |
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338 <tag-desc> |
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339 boolean, |
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340 true if the buffer should have the <literal>flush</literal> flag |
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341 </tag-desc> |
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342 </list> |
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343 </para> |
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344 The method may be called only from the |
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345 <link doc="../http/ngx_http_js_module.xml" id="js_body_filter"/> function. |
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346 </tag-desc> |
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347 |
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348 <tag-name id="r_send_header"><literal>r.sendHeader()</literal></tag-name> |
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349 <tag-desc> |
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350 sends the HTTP headers to the client |
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351 </tag-desc> |
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352 |
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353 <tag-name id="r_status"><literal>r.status</literal></tag-name> |
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354 <tag-desc> |
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355 status, writable |
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356 </tag-desc> |
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357 |
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358 <tag-name id="r_subrequest"><literal>r.subrequest(<value>uri</value>[, |
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359 <value>options</value>[, <value>callback</value>]])</literal></tag-name> |
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360 <tag-desc> |
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361 creates a subrequest with the given <literal>uri</literal> and |
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362 <literal>options</literal>, and installs |
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363 an optional completion <literal>callback</literal>. |
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364 |
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365 <para> |
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366 A |
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367 <link doc="../dev/development_guide.xml.xml" id="http_subrequests">subrequest</link> |
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368 shares its input headers with the client request. |
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369 To send headers different from original headers to a proxied server, the |
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370 <link doc="../http/ngx_http_proxy_module.xml" id="proxy_set_header"/> |
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371 directive can be used. |
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372 To send a completely new set of headers to a proxied server, the |
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373 <link doc="../http/ngx_http_proxy_module.xml" id="proxy_pass_request_headers"/> |
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374 directive can be used. |
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375 </para> |
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376 |
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377 <para> |
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378 If <literal>options</literal> is a string, then it |
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379 holds the subrequest arguments string. |
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380 Otherwise, <literal>options</literal> is expected to be |
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381 an object with the following keys: |
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382 <list type="tag"> |
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383 <tag-name><literal>args</literal></tag-name> |
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384 <tag-desc> |
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385 arguments string, by default an empty string is used |
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386 </tag-desc> |
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387 <tag-name><literal>body</literal></tag-name> |
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388 <tag-desc> |
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389 request body, |
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390 by default the request body of the parent request object is used |
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391 </tag-desc> |
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392 |
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393 <tag-name><literal>method</literal></tag-name> |
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394 <tag-desc> |
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395 HTTP method, by default the <literal>GET</literal> method is used |
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396 </tag-desc> |
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397 |
2507 | 398 <tag-name><literal>detached</literal></tag-name> |
399 <tag-desc> | |
400 boolean flag (<link doc="changes.xml" id="njs0.3.9">0.3.9</link>), | |
401 if <literal>true</literal>, the created subrequest is a detached subrequest. | |
402 Responses to detached subrequests are ignored. | |
403 Unlike ordinary subrequests, a detached subrequest | |
404 can be created inside a variable handler. | |
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405 The <literal>detached</literal> flag and callback argument |
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406 are mutually exclusive. |
2507 | 407 </tag-desc> |
408 | |
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409 </list> |
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410 </para> |
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411 |
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412 <para> |
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413 The completion <literal>callback</literal> receives |
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414 a subrequest response object with methods and properties |
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415 identical to the parent request object. |
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416 </para> |
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417 |
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418 <para> |
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419 Since <link doc="changes.xml" id="njs0.3.8">0.3.8</link>, |
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420 if a <literal>callback</literal> is not provided, |
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421 the <literal>Promise</literal> object |
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422 that resolves to the subrequest response object is returned. |
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423 </para> |
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424 </tag-desc> |
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425 |
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426 <tag-name id="r_uri"><literal>r.uri</literal></tag-name> |
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427 <tag-desc> |
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428 current <link doc="../http/ngx_http_core_module.xml" id="var_uri">URI</link> |
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429 in request, |
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430 <link doc="../http/ngx_http_core_module.xml" id="location">normalized</link>, |
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431 read-only |
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432 </tag-desc> |
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433 |
2628 | 434 <tag-name id="r_raw_variables"><literal>r.rawVariables{}</literal></tag-name> |
435 <tag-desc> | |
436 nginx <link id="r_variables">variables</link> as Buffers, | |
437 writable | |
438 (since <link doc="changes.xml" id="njs0.5.0">0.5.0</link>) | |
439 </tag-desc> | |
440 | |
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441 <tag-name id="r_variables"><literal>r.variables{}</literal></tag-name> |
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442 <tag-desc> |
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443 nginx variables object, writable |
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444 (since <link doc="changes.xml" id="njs0.2.8">0.2.8</link>) |
2545
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445 </tag-desc> |
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446 |
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447 <tag-name id="r_warn"><literal>r.warn(<value>string</value>)</literal></tag-name> |
2545
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448 <tag-desc> |
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449 writes a <literal>string</literal> to the error log |
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450 on the <literal>warning</literal> level of logging |
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451 </tag-desc> |
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452 |
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453 </list> |
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454 </para> |
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455 |
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456 </section> |
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457 |
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458 |
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459 <section id="stream" name="Stream Session"> |
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460 |
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461 <para> |
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462 The stream session object is available only in the |
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463 <link doc="../stream/ngx_stream_js_module.xml">ngx_stream_js_module</link> |
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464 module. |
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465 All string properties of the object are <link id="string">byte strings</link>. |
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466 </para> |
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467 |
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468 <para> |
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469 <list type="tag"> |
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470 |
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471 <tag-name id="s_allow"><literal>s.allow()</literal></tag-name> |
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472 <tag-desc> |
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473 successfully finalizes the phase handler |
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474 (<link doc="changes.xml" id="njs0.2.4">0.2.4</link>) |
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475 </tag-desc> |
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476 |
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477 <tag-name id="s_decline"><literal>s.decline()</literal></tag-name> |
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478 <tag-desc> |
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479 finalizes the phase handler and passes control to the next handler |
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480 (<link doc="changes.xml" id="njs0.2.4">0.2.4</link>) |
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481 </tag-desc> |
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482 |
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483 <tag-name id="s_deny"><literal>s.deny()</literal></tag-name> |
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484 <tag-desc> |
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485 finalizes the phase handler with the access error code |
2337
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486 (<link doc="changes.xml" id="njs0.2.4">0.2.4</link>) |
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487 </tag-desc> |
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|
488 |
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489 <tag-name id="s_done"><literal>s.done</literal>(<value>[code]</value>)</tag-name> |
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490 <tag-desc> |
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491 successfully finalizes the current phase handler |
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492 or finalizes it with the specified numeric code |
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493 (<link doc="changes.xml" id="njs0.2.4">0.2.4</link>). |
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494 </tag-desc> |
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|
495 |
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496 <tag-name id="s_error"><literal>s.error(<value>string</value>)</literal></tag-name> |
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497 <tag-desc> |
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498 writes a sent <literal>string</literal> to the error log |
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499 on the <literal>error</literal> level of logging |
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500 </tag-desc> |
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501 |
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502 <tag-name id="s_log"><literal>s.log(<value>string</value>)</literal></tag-name> |
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503 <tag-desc> |
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504 writes a sent <value>string</value> to the error log |
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505 on the <literal>info</literal> level of logging |
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506 </tag-desc> |
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507 |
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508 <tag-name id="s_off"><literal>s.off(<value>eventName</value>)</literal></tag-name> |
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509 <tag-desc> |
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510 unregisters the callback set by the <link id="s_on">s.on()</link> method |
2337
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Updated links to changes.xml in njs Reference.
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511 (<link doc="changes.xml" id="njs0.2.4">0.2.4</link>) |
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512 </tag-desc> |
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|
513 |
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514 <tag-name id="s_on"><literal>s.on(<value>event</value>, |
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515 <value>callback</value>)</literal></tag-name> |
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516 <tag-desc> |
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517 registers a <literal>callback</literal> |
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518 for the specified <literal>event</literal> |
2337
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Updated links to changes.xml in njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
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519 (<link doc="changes.xml" id="njs0.2.4">0.2.4</link>). |
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520 |
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521 <para> |
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522 An <literal>event</literal> may be one of the following strings: |
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523 <list type="tag"> |
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524 <tag-name><literal>upload</literal></tag-name> |
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|
525 <tag-desc> |
2628 | 526 new data (string) from a client |
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527 </tag-desc> |
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528 |
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529 <tag-name><literal>download</literal></tag-name> |
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|
530 <tag-desc> |
2628 | 531 new data (string) to a client |
532 </tag-desc> | |
533 | |
534 <tag-name><literal>upstream</literal></tag-name> | |
535 <tag-desc> | |
536 new data (Buffer) from a client | |
537 (since <link doc="changes.xml" id="njs0.5.0">0.5.0</link>) | |
538 </tag-desc> | |
539 | |
540 <tag-name><literal>downstream</literal></tag-name> | |
541 <tag-desc> | |
542 new data (Buffer) to a client | |
543 (since <link doc="changes.xml" id="njs0.5.0">0.5.0</link>) | |
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544 </tag-desc> |
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|
545 |
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Created "nginx objects" section in reference.xml.
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|
546 </list> |
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547 </para> |
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parents:
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|
548 |
0f16ef9a8dbe
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changeset
|
549 <para> |
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parents:
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changeset
|
550 The completion callback has the following prototype: |
0f16ef9a8dbe
Created "nginx objects" section in reference.xml.
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parents:
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|
551 <literal>callback(data, flags)</literal>, where |
2628 | 552 <literal>data</literal> is string or Buffer (depending on the event type) |
2247
0f16ef9a8dbe
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parents:
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|
553 <literal>flags</literal> is an object |
0f16ef9a8dbe
Created "nginx objects" section in reference.xml.
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|
554 with the following properties: |
0f16ef9a8dbe
Created "nginx objects" section in reference.xml.
Yaroslav Zhuravlev <yar@nginx.com>
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|
555 <list type="tag"> |
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Created "nginx objects" section in reference.xml.
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parents:
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|
556 <tag-name id="s_on_callback_last"><literal>last</literal></tag-name> |
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Created "nginx objects" section in reference.xml.
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parents:
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|
557 <tag-desc> |
0f16ef9a8dbe
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|
558 a boolean value, true if data is a last buffer. |
0f16ef9a8dbe
Created "nginx objects" section in reference.xml.
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parents:
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diff
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|
559 </tag-desc> |
0f16ef9a8dbe
Created "nginx objects" section in reference.xml.
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parents:
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diff
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|
560 |
0f16ef9a8dbe
Created "nginx objects" section in reference.xml.
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|
561 </list> |
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Created "nginx objects" section in reference.xml.
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|
562 </para> |
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Created "nginx objects" section in reference.xml.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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changeset
|
563 </tag-desc> |
0f16ef9a8dbe
Created "nginx objects" section in reference.xml.
Yaroslav Zhuravlev <yar@nginx.com>
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changeset
|
564 |
2570
44792f1ee284
Added IDs to methods in njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2569
diff
changeset
|
565 <tag-name id="s_remote_address"><literal>s.remoteAddress</literal></tag-name> |
2247
0f16ef9a8dbe
Created "nginx objects" section in reference.xml.
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parents:
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|
566 <tag-desc> |
0f16ef9a8dbe
Created "nginx objects" section in reference.xml.
Yaroslav Zhuravlev <yar@nginx.com>
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|
567 client address, read-only |
0f16ef9a8dbe
Created "nginx objects" section in reference.xml.
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parents:
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diff
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|
568 </tag-desc> |
0f16ef9a8dbe
Created "nginx objects" section in reference.xml.
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|
569 |
2628 | 570 <tag-name id="s_raw_variables"><literal>s.rawVariables</literal></tag-name> |
571 <tag-desc> | |
572 nginx <link id="s_variables">variables</link> as Buffers, | |
573 writable | |
574 (since <link doc="changes.xml" id="njs0.5.0">0.5.0</link>) | |
575 </tag-desc> | |
576 | |
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0f16ef9a8dbe
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parents:
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|
577 <tag-name id="s_send"><literal>s.send(<value>data</value>[, |
0f16ef9a8dbe
Created "nginx objects" section in reference.xml.
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|
578 <value>options</value>])</literal></tag-name> |
0f16ef9a8dbe
Created "nginx objects" section in reference.xml.
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parents:
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|
579 <tag-desc> |
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Created "nginx objects" section in reference.xml.
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parents:
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diff
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|
580 sends the data to the client |
2337
867fe207f13e
Updated links to changes.xml in njs Reference.
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parents:
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diff
changeset
|
581 (<link doc="changes.xml" id="njs0.2.4">0.2.4</link>). |
2628 | 582 The data can be a string or Buffer |
583 (<link doc="changes.xml" id="njs0.5.0">0.5.0</link>). | |
2247
0f16ef9a8dbe
Created "nginx objects" section in reference.xml.
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changeset
|
584 The <literal>options</literal> is an object used |
0f16ef9a8dbe
Created "nginx objects" section in reference.xml.
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parents:
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changeset
|
585 to override nginx buffer flags derived from an incoming data chunk buffer. |
2579
63cef7604e0d
Minor review of njs Reference for typos and style.
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|
586 The flags can be overridden with the following flags: |
2247
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|
587 <para> |
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|
588 <list type="tag"> |
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Created "nginx objects" section in reference.xml.
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parents:
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|
589 |
0f16ef9a8dbe
Created "nginx objects" section in reference.xml.
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changeset
|
590 <tag-name><literal>last</literal></tag-name> |
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Created "nginx objects" section in reference.xml.
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parents:
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changeset
|
591 <tag-desc> |
2579
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Minor review of njs Reference for typos and style.
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diff
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|
592 boolean, |
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Minor review of njs Reference for typos and style.
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parents:
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|
593 true if the buffer is the last buffer |
2247
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|
594 </tag-desc> |
0f16ef9a8dbe
Created "nginx objects" section in reference.xml.
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|
595 |
0f16ef9a8dbe
Created "nginx objects" section in reference.xml.
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changeset
|
596 <tag-name><literal>flush</literal></tag-name> |
0f16ef9a8dbe
Created "nginx objects" section in reference.xml.
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parents:
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diff
changeset
|
597 <tag-desc> |
2579
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|
598 boolean, |
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Minor review of njs Reference for typos and style.
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|
599 true if the buffer should have the <literal>flush</literal> flag |
2247
0f16ef9a8dbe
Created "nginx objects" section in reference.xml.
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|
600 </tag-desc> |
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|
601 </list> |
0f16ef9a8dbe
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diff
changeset
|
602 </para> |
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Created "nginx objects" section in reference.xml.
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|
603 The method can be called multiple times per callback invocation. |
0f16ef9a8dbe
Created "nginx objects" section in reference.xml.
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changeset
|
604 </tag-desc> |
0f16ef9a8dbe
Created "nginx objects" section in reference.xml.
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|
605 |
2338
39ac205f90b7
Documented that r.variables{} and s.variables{} are writable.
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|
606 <tag-name id="s_variables"><literal>s.variables{}</literal></tag-name> |
2247
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Created "nginx objects" section in reference.xml.
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|
607 <tag-desc> |
2338
39ac205f90b7
Documented that r.variables{} and s.variables{} are writable.
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|
608 nginx variables object, writable |
39ac205f90b7
Documented that r.variables{} and s.variables{} are writable.
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parents:
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diff
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|
609 (since <link doc="changes.xml" id="njs0.2.8">0.2.8</link>) |
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Created "nginx objects" section in reference.xml.
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|
610 </tag-desc> |
0f16ef9a8dbe
Created "nginx objects" section in reference.xml.
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changeset
|
611 |
2570
44792f1ee284
Added IDs to methods in njs Reference.
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diff
changeset
|
612 <tag-name id="s_warn"><literal>s.warn(<value>string</value>)</literal></tag-name> |
2247
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Created "nginx objects" section in reference.xml.
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changeset
|
613 <tag-desc> |
0f16ef9a8dbe
Created "nginx objects" section in reference.xml.
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changeset
|
614 writes a sent <literal>string</literal> to the error log |
0f16ef9a8dbe
Created "nginx objects" section in reference.xml.
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parents:
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diff
changeset
|
615 on the <literal>warning</literal> level of logging |
0f16ef9a8dbe
Created "nginx objects" section in reference.xml.
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|
616 </tag-desc> |
0f16ef9a8dbe
Created "nginx objects" section in reference.xml.
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|
617 |
0f16ef9a8dbe
Created "nginx objects" section in reference.xml.
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|
618 </list> |
0f16ef9a8dbe
Created "nginx objects" section in reference.xml.
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changeset
|
619 </para> |
0f16ef9a8dbe
Created "nginx objects" section in reference.xml.
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|
620 |
0f16ef9a8dbe
Created "nginx objects" section in reference.xml.
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|
621 </section> |
0f16ef9a8dbe
Created "nginx objects" section in reference.xml.
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|
622 |
2628 | 623 |
2653
9fc25ea7a92c
Documented ngx.fetch and Response interface in njs.
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|
624 <section id="response" name="Response"> |
9fc25ea7a92c
Documented ngx.fetch and Response interface in njs.
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|
625 |
9fc25ea7a92c
Documented ngx.fetch and Response interface in njs.
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parents:
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changeset
|
626 <para> |
9fc25ea7a92c
Documented ngx.fetch and Response interface in njs.
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|
627 The <literal>Response</literal> interface is available since |
9fc25ea7a92c
Documented ngx.fetch and Response interface in njs.
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|
628 <link doc="changes.xml" id="njs0.5.1">0.5.1</link>. |
9fc25ea7a92c
Documented ngx.fetch and Response interface in njs.
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|
629 |
9fc25ea7a92c
Documented ngx.fetch and Response interface in njs.
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parents:
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|
630 <list type="tag"> |
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631 |
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632 <tag-name id="response_arraybuffer"><literal>arrayBuffer()</literal></tag-name> |
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633 <tag-desc> |
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634 Takes a <literal>Response</literal> stream and reads it to completion. |
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635 Returns a <literal>Promise</literal> that resolves with |
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636 an <literal>ArrayBuffer</literal>. |
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637 </tag-desc> |
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638 |
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639 <tag-name id="response_bodyused"><literal>bodyUsed</literal></tag-name> |
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640 <tag-desc> |
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641 A boolean value, <literal>true</literal> |
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642 if the body was read. |
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Documented ngx.fetch and Response interface in njs.
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643 </tag-desc> |
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644 |
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645 <tag-name id="response_headers"><literal>headers</literal></tag-name> |
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646 <tag-desc> |
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647 The <literal>Headers</literal> read-only object associated with the |
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648 <link id="global_response"><literal>Response</literal></link>: |
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649 |
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|
650 <list type="tag"> |
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|
651 |
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652 <tag-name id="headers_get"><literal>get(<value>name</value>)</literal></tag-name> |
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653 <tag-desc> |
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654 returns a string containing the values of all headers with the specified name |
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655 separated by a comma and a space |
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656 </tag-desc> |
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657 |
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658 <tag-name id="headers_getall"><literal>getAll(<value>name</value>)</literal></tag-name> |
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|
659 <tag-desc> |
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660 returns an array containing the values of all headers with the specified name |
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661 </tag-desc> |
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662 |
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663 <tag-name id="headers_has"><literal>has(<value>name</value>)</literal></tag-name> |
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664 <tag-desc> |
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665 returns a boolean value |
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666 indicating whether a header with the specified name exists |
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667 </tag-desc> |
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|
668 |
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669 </list> |
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670 </tag-desc> |
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671 |
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|
672 <tag-name id="response_json"><literal>json()</literal></tag-name> |
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|
673 <tag-desc> |
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|
674 Takes a <literal>Response</literal> stream and reads it to completion. |
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675 Returns a <literal>Promise</literal> that resolves with |
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676 the result of parsing the body text as JSON. |
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677 </tag-desc> |
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|
678 |
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|
679 <tag-name id="response_ok"><literal>ok</literal></tag-name> |
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|
680 <tag-desc> |
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|
681 A boolean value, <literal>true</literal> |
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682 if the response was successful (status codes between 200–299). |
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|
683 </tag-desc> |
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Documented ngx.fetch and Response interface in njs.
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|
684 |
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|
685 <tag-name id="response_redirect"><literal>redirected</literal></tag-name> |
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|
686 <tag-desc> |
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|
687 A boolean value, <literal>true</literal> |
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|
688 if the response is the result of a redirect. |
9fc25ea7a92c
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|
689 </tag-desc> |
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|
690 |
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Documented ngx.fetch and Response interface in njs.
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|
691 <tag-name id="response_status"><literal>status</literal></tag-name> |
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|
692 <tag-desc> |
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|
693 The status code of the response. |
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|
694 </tag-desc> |
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|
695 |
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|
696 <tag-name id="response_statustext"><literal>statusText</literal></tag-name> |
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|
697 <tag-desc> |
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|
698 The status message corresponding to the status code. |
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|
699 </tag-desc> |
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|
700 |
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Documented ngx.fetch and Response interface in njs.
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|
701 <tag-name id="response_text"><literal>text()</literal></tag-name> |
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Documented ngx.fetch and Response interface in njs.
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|
702 <tag-desc> |
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|
703 Takes a <literal>Response</literal> stream and reads it to completion. |
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|
704 Returns a <literal>Promise</literal> that resolves with a string. |
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|
705 </tag-desc> |
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Documented ngx.fetch and Response interface in njs.
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|
706 |
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Documented ngx.fetch and Response interface in njs.
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parents:
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|
707 <tag-name id="response_type"><literal>type</literal></tag-name> |
9fc25ea7a92c
Documented ngx.fetch and Response interface in njs.
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|
708 <tag-desc> |
9fc25ea7a92c
Documented ngx.fetch and Response interface in njs.
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parents:
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changeset
|
709 The type of the response. |
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Documented ngx.fetch and Response interface in njs.
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|
710 </tag-desc> |
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Documented ngx.fetch and Response interface in njs.
Yaroslav Zhuravlev <yar@nginx.com>
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|
711 |
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Documented ngx.fetch and Response interface in njs.
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parents:
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|
712 <tag-name id="response_url"><literal>url</literal></tag-name> |
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Documented ngx.fetch and Response interface in njs.
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|
713 <tag-desc> |
9fc25ea7a92c
Documented ngx.fetch and Response interface in njs.
Yaroslav Zhuravlev <yar@nginx.com>
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|
714 The URL of the response. |
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Documented ngx.fetch and Response interface in njs.
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|
715 </tag-desc> |
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Documented ngx.fetch and Response interface in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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|
716 |
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Documented ngx.fetch and Response interface in njs.
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parents:
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|
717 </list> |
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Yaroslav Zhuravlev <yar@nginx.com>
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changeset
|
718 </para> |
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Documented ngx.fetch and Response interface in njs.
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|
719 |
9fc25ea7a92c
Documented ngx.fetch and Response interface in njs.
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changeset
|
720 </section> |
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Documented ngx.fetch and Response interface in njs.
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parents:
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|
721 |
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Documented ngx.fetch and Response interface in njs.
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parents:
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|
722 |
2628 | 723 <section id="ngx" name="ngx"> |
724 | |
725 <para> | |
726 The <literal>ngx</literal> global object is available | |
727 since <link doc="changes.xml" id="njs0.5.0">0.5.0</link>. | |
728 <list type="tag"> | |
729 | |
2653
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parents:
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|
730 <tag-name id="ngx_fetch"><literal>ngx.fetch(<value>url</value>, |
9fc25ea7a92c
Documented ngx.fetch and Response interface in njs.
Yaroslav Zhuravlev <yar@nginx.com>
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|
731 [<value>options</value>])</literal></tag-name> |
9fc25ea7a92c
Documented ngx.fetch and Response interface in njs.
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|
732 <tag-desc> |
9fc25ea7a92c
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parents:
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changeset
|
733 Makes a request to fetch an URL |
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Documented ngx.fetch and Response interface in njs.
Yaroslav Zhuravlev <yar@nginx.com>
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|
734 (<link doc="changes.xml" id="njs0.5.1">0.5.1</link>), |
9fc25ea7a92c
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Yaroslav Zhuravlev <yar@nginx.com>
parents:
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changeset
|
735 returns a <literal>Promise</literal> that resolves with |
9fc25ea7a92c
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Yaroslav Zhuravlev <yar@nginx.com>
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changeset
|
736 the <link id="global_response"><literal>Response</literal></link> object. |
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Documented ngx.fetch and Response interface in njs.
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|
737 Only the <literal>http://</literal> scheme is supported, |
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Documented ngx.fetch and Response interface in njs.
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changeset
|
738 redirects are not handled. |
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Documented ngx.fetch and Response interface in njs.
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parents:
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diff
changeset
|
739 <para> |
9fc25ea7a92c
Documented ngx.fetch and Response interface in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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|
740 The <literal>options</literal> parameter is expected to be an object |
9fc25ea7a92c
Documented ngx.fetch and Response interface in njs.
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parents:
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|
741 with the following keys: |
9fc25ea7a92c
Documented ngx.fetch and Response interface in njs.
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parents:
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diff
changeset
|
742 <list type="tag"> |
9fc25ea7a92c
Documented ngx.fetch and Response interface in njs.
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changeset
|
743 |
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Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
744 <tag-name id="fetch_body"><literal>body</literal></tag-name> |
9fc25ea7a92c
Documented ngx.fetch and Response interface in njs.
Yaroslav Zhuravlev <yar@nginx.com>
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diff
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|
745 <tag-desc> |
9fc25ea7a92c
Documented ngx.fetch and Response interface in njs.
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parents:
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diff
changeset
|
746 request body, |
9fc25ea7a92c
Documented ngx.fetch and Response interface in njs.
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parents:
2647
diff
changeset
|
747 by default is empty |
9fc25ea7a92c
Documented ngx.fetch and Response interface in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
748 </tag-desc> |
9fc25ea7a92c
Documented ngx.fetch and Response interface in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2647
diff
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|
749 |
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Documented ngx.fetch and Response interface in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
750 <tag-name id="fetch_buffer_size"><literal>buffer_size</literal></tag-name> |
9fc25ea7a92c
Documented ngx.fetch and Response interface in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2647
diff
changeset
|
751 <tag-desc> |
9fc25ea7a92c
Documented ngx.fetch and Response interface in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2647
diff
changeset
|
752 the buffer size for reading the response, |
9fc25ea7a92c
Documented ngx.fetch and Response interface in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2647
diff
changeset
|
753 by default is <literal>4096</literal> |
9fc25ea7a92c
Documented ngx.fetch and Response interface in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
754 </tag-desc> |
9fc25ea7a92c
Documented ngx.fetch and Response interface in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2647
diff
changeset
|
755 |
9fc25ea7a92c
Documented ngx.fetch and Response interface in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2647
diff
changeset
|
756 <tag-name id="fetch_headers"><literal>headers</literal></tag-name> |
9fc25ea7a92c
Documented ngx.fetch and Response interface in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2647
diff
changeset
|
757 <tag-desc> |
9fc25ea7a92c
Documented ngx.fetch and Response interface in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2647
diff
changeset
|
758 request headers object |
9fc25ea7a92c
Documented ngx.fetch and Response interface in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2647
diff
changeset
|
759 </tag-desc> |
9fc25ea7a92c
Documented ngx.fetch and Response interface in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
760 |
9fc25ea7a92c
Documented ngx.fetch and Response interface in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2647
diff
changeset
|
761 <tag-name id="fetch_get"><literal>max_response_body_size</literal></tag-name> |
9fc25ea7a92c
Documented ngx.fetch and Response interface in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
762 <tag-desc> |
9fc25ea7a92c
Documented ngx.fetch and Response interface in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2647
diff
changeset
|
763 the maximum size of the response body in bytes, |
9fc25ea7a92c
Documented ngx.fetch and Response interface in njs.
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parents:
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diff
changeset
|
764 by default is <literal>32768</literal> |
9fc25ea7a92c
Documented ngx.fetch and Response interface in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2647
diff
changeset
|
765 </tag-desc> |
9fc25ea7a92c
Documented ngx.fetch and Response interface in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
766 |
9fc25ea7a92c
Documented ngx.fetch and Response interface in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2647
diff
changeset
|
767 <tag-name id="fetch_method"><literal>method</literal></tag-name> |
9fc25ea7a92c
Documented ngx.fetch and Response interface in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2647
diff
changeset
|
768 <tag-desc> |
9fc25ea7a92c
Documented ngx.fetch and Response interface in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2647
diff
changeset
|
769 HTTP method, |
9fc25ea7a92c
Documented ngx.fetch and Response interface in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2647
diff
changeset
|
770 by default the <literal>GET</literal> method is used |
9fc25ea7a92c
Documented ngx.fetch and Response interface in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2647
diff
changeset
|
771 </tag-desc> |
9fc25ea7a92c
Documented ngx.fetch and Response interface in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2647
diff
changeset
|
772 |
9fc25ea7a92c
Documented ngx.fetch and Response interface in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2647
diff
changeset
|
773 </list> |
9fc25ea7a92c
Documented ngx.fetch and Response interface in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2647
diff
changeset
|
774 Example: |
9fc25ea7a92c
Documented ngx.fetch and Response interface in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2647
diff
changeset
|
775 <example> |
9fc25ea7a92c
Documented ngx.fetch and Response interface in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2647
diff
changeset
|
776 ngx.fetch('http://nginx.org/') |
9fc25ea7a92c
Documented ngx.fetch and Response interface in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2647
diff
changeset
|
777 .then(reply => reply.text()) |
9fc25ea7a92c
Documented ngx.fetch and Response interface in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2647
diff
changeset
|
778 .then(body => r.return(200, body)) |
9fc25ea7a92c
Documented ngx.fetch and Response interface in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2647
diff
changeset
|
779 .catch(e => r.return(501, e.message)) |
9fc25ea7a92c
Documented ngx.fetch and Response interface in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2647
diff
changeset
|
780 </example> |
9fc25ea7a92c
Documented ngx.fetch and Response interface in njs.
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parents:
2647
diff
changeset
|
781 </para> |
9fc25ea7a92c
Documented ngx.fetch and Response interface in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2647
diff
changeset
|
782 </tag-desc> |
9fc25ea7a92c
Documented ngx.fetch and Response interface in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2647
diff
changeset
|
783 |
2628 | 784 <tag-name id="ngx_log"><literal>ngx.log</literal>(<value>level</value>, |
785 <value>message</value>)</tag-name> | |
786 <tag-desc> | |
787 Writes a message to the error log with the specified level of logging. | |
788 The <value>level</value> parameter specifies one of the log levels, | |
789 the <value>message</value> parameter can be a string or Buffer. | |
790 The following log levels can be specified: | |
791 <literal>ngx.INFO</literal>, | |
792 <literal>ngx.WARN</literal>, and | |
793 <literal>ngx.ERR</literal>. | |
794 </tag-desc> | |
2653
9fc25ea7a92c
Documented ngx.fetch and Response interface in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2647
diff
changeset
|
795 |
2628 | 796 </list> |
797 </para> | |
798 | |
799 </section> | |
800 | |
2247
0f16ef9a8dbe
Created "nginx objects" section in reference.xml.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2246
diff
changeset
|
801 </section> |
0f16ef9a8dbe
Created "nginx objects" section in reference.xml.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2246
diff
changeset
|
802 |
0f16ef9a8dbe
Created "nginx objects" section in reference.xml.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2246
diff
changeset
|
803 |
2176 | 804 <section id="core" name="Core"> |
805 | |
806 | |
2405
dbf68c949522
Documented the "process" global object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2394
diff
changeset
|
807 <section id="core_global" name="Global"> |
dbf68c949522
Documented the "process" global object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2394
diff
changeset
|
808 |
dbf68c949522
Documented the "process" global object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2394
diff
changeset
|
809 |
dbf68c949522
Documented the "process" global object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2394
diff
changeset
|
810 <section id="process" name="Process"> |
dbf68c949522
Documented the "process" global object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2394
diff
changeset
|
811 |
dbf68c949522
Documented the "process" global object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2394
diff
changeset
|
812 <para> |
dbf68c949522
Documented the "process" global object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2394
diff
changeset
|
813 The <literal>process</literal> object is a global object |
dbf68c949522
Documented the "process" global object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2394
diff
changeset
|
814 that provides information about the current process |
dbf68c949522
Documented the "process" global object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2394
diff
changeset
|
815 (<link doc="changes.xml" id="njs0.3.3">0.3.3</link>). |
dbf68c949522
Documented the "process" global object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2394
diff
changeset
|
816 </para> |
dbf68c949522
Documented the "process" global object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2394
diff
changeset
|
817 |
dbf68c949522
Documented the "process" global object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2394
diff
changeset
|
818 <para> |
dbf68c949522
Documented the "process" global object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2394
diff
changeset
|
819 <list type="tag"> |
dbf68c949522
Documented the "process" global object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2394
diff
changeset
|
820 |
dbf68c949522
Documented the "process" global object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2394
diff
changeset
|
821 <tag-name id="process_argv"><literal>process.argv</literal></tag-name> |
dbf68c949522
Documented the "process" global object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2394
diff
changeset
|
822 <tag-desc> |
dbf68c949522
Documented the "process" global object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2394
diff
changeset
|
823 Returns an array that contains the command line arguments |
dbf68c949522
Documented the "process" global object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2394
diff
changeset
|
824 passed when the current process was launched. |
dbf68c949522
Documented the "process" global object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2394
diff
changeset
|
825 </tag-desc> |
dbf68c949522
Documented the "process" global object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2394
diff
changeset
|
826 |
dbf68c949522
Documented the "process" global object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2394
diff
changeset
|
827 <tag-name id="process_env"><literal>process.env</literal></tag-name> |
dbf68c949522
Documented the "process" global object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2394
diff
changeset
|
828 <tag-desc> |
dbf68c949522
Documented the "process" global object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2394
diff
changeset
|
829 Returns an object containing the user environment. |
dbf68c949522
Documented the "process" global object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2394
diff
changeset
|
830 <note> |
dbf68c949522
Documented the "process" global object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2394
diff
changeset
|
831 By default, nginx removes all environment variables inherited |
dbf68c949522
Documented the "process" global object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2394
diff
changeset
|
832 from its parent process except the TZ variable. |
dbf68c949522
Documented the "process" global object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2394
diff
changeset
|
833 Use the <link doc="../ngx_core_module.xml" id="env"/> directive |
dbf68c949522
Documented the "process" global object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2394
diff
changeset
|
834 to preserve some of the inherited variables. |
dbf68c949522
Documented the "process" global object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2394
diff
changeset
|
835 </note> |
dbf68c949522
Documented the "process" global object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2394
diff
changeset
|
836 </tag-desc> |
dbf68c949522
Documented the "process" global object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2394
diff
changeset
|
837 |
dbf68c949522
Documented the "process" global object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2394
diff
changeset
|
838 <tag-name id="process_pid"><literal>process.pid</literal></tag-name> |
dbf68c949522
Documented the "process" global object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2394
diff
changeset
|
839 <tag-desc> |
dbf68c949522
Documented the "process" global object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2394
diff
changeset
|
840 Returns the PID of the current process. |
dbf68c949522
Documented the "process" global object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2394
diff
changeset
|
841 </tag-desc> |
dbf68c949522
Documented the "process" global object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2394
diff
changeset
|
842 |
dbf68c949522
Documented the "process" global object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2394
diff
changeset
|
843 <tag-name id="process_ppid"><literal>process.ppid</literal></tag-name> |
dbf68c949522
Documented the "process" global object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2394
diff
changeset
|
844 <tag-desc> |
dbf68c949522
Documented the "process" global object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2394
diff
changeset
|
845 Returns the PID of the current parent process. |
dbf68c949522
Documented the "process" global object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2394
diff
changeset
|
846 </tag-desc> |
dbf68c949522
Documented the "process" global object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2394
diff
changeset
|
847 |
dbf68c949522
Documented the "process" global object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2394
diff
changeset
|
848 </list> |
dbf68c949522
Documented the "process" global object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2394
diff
changeset
|
849 </para> |
dbf68c949522
Documented the "process" global object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2394
diff
changeset
|
850 |
dbf68c949522
Documented the "process" global object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2394
diff
changeset
|
851 </section> |
dbf68c949522
Documented the "process" global object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2394
diff
changeset
|
852 |
dbf68c949522
Documented the "process" global object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2394
diff
changeset
|
853 </section> |
dbf68c949522
Documented the "process" global object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2394
diff
changeset
|
854 |
dbf68c949522
Documented the "process" global object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2394
diff
changeset
|
855 |
2186
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
856 <section id="string" name="String"> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
857 |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
858 <para> |
2315
ae56e4613280
Corrected language in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2313
diff
changeset
|
859 There are two types of strings in njs: a Unicode string (default) and |
ae56e4613280
Corrected language in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2313
diff
changeset
|
860 a byte string. |
2186
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
861 </para> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
862 |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
863 <para> |
2315
ae56e4613280
Corrected language in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2313
diff
changeset
|
864 A Unicode string corresponds to an ECMAScript string |
2186
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
865 which contains Unicode characters. |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
866 </para> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
867 |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
868 <para> |
2315
ae56e4613280
Corrected language in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2313
diff
changeset
|
869 Byte strings contain a sequence of bytes |
ae56e4613280
Corrected language in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2313
diff
changeset
|
870 and are used to serialize Unicode strings |
2186
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
871 to external data and deserialize from external sources. |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
872 For example, the <link id="string_toutf8">toUTF8()</link> method serializes |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
873 a Unicode string to a byte string using UTF8 encoding: |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
874 <example> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
875 >> '£'.toUTF8().toString('hex') |
2214
e029f4bc7ede
Added quotes to njs examples.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2212
diff
changeset
|
876 'c2a3' /* C2 A3 is the UTF8 representation of 00A3 ('£') code point */ |
2186
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
877 </example> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
878 The <link id="string_tobytes">toBytes()</link> method serializes |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
879 a Unicode string with code points up to 255 into a byte string, |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
880 otherwise, <literal>null</literal> is returned: |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
881 <example> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
882 >> '£'.toBytes().toString('hex') |
2214
e029f4bc7ede
Added quotes to njs examples.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2212
diff
changeset
|
883 'a3' /* a3 is a byte equal to 00A3 ('£') code point */ |
2186
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
884 </example> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
885 |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
886 <list type="tag"> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
887 |
2211
660229c5c92f
Documented String.bytesFrom() method in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2207
diff
changeset
|
888 <tag-name id="string_bytesfrom"><literal>String.bytesFrom(<value>array</value> |
660229c5c92f
Documented String.bytesFrom() method in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2207
diff
changeset
|
889 | <value>string</value>, <value>encoding</value>)</literal></tag-name> |
660229c5c92f
Documented String.bytesFrom() method in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2207
diff
changeset
|
890 <tag-desc> |
2569
2edc64c05b0e
Removed ECMAScript methods from njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2564
diff
changeset
|
891 Creates a byte string either from an array that contains octets, |
2315
ae56e4613280
Corrected language in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2313
diff
changeset
|
892 or from an encoded string |
2337
867fe207f13e
Updated links to changes.xml in njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2332
diff
changeset
|
893 (<link doc="changes.xml" id="njs0.2.3">0.2.3</link>). |
2211
660229c5c92f
Documented String.bytesFrom() method in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2207
diff
changeset
|
894 The encoding can be |
660229c5c92f
Documented String.bytesFrom() method in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2207
diff
changeset
|
895 <literal>hex</literal>, |
660229c5c92f
Documented String.bytesFrom() method in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2207
diff
changeset
|
896 <literal>base64</literal>, and |
660229c5c92f
Documented String.bytesFrom() method in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2207
diff
changeset
|
897 <literal>base64url</literal>. |
2605
0ec1e1b063d7
Deprecated String.bytesFrom method in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2604
diff
changeset
|
898 The method is deprecated since |
0ec1e1b063d7
Deprecated String.bytesFrom method in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2604
diff
changeset
|
899 <link doc="changes.xml" id="njs0.4.4">0.4.4</link>, |
0ec1e1b063d7
Deprecated String.bytesFrom method in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2604
diff
changeset
|
900 the <literal>Buffer.from</literal> method should be used instead: |
2211
660229c5c92f
Documented String.bytesFrom() method in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2207
diff
changeset
|
901 <example> |
2605
0ec1e1b063d7
Deprecated String.bytesFrom method in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2604
diff
changeset
|
902 >> Buffer.from([0x62, 0x75, 0x66, 0x66, 0x65, 0x72]).toString() |
2211
660229c5c92f
Documented String.bytesFrom() method in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2207
diff
changeset
|
903 'buffer' |
660229c5c92f
Documented String.bytesFrom() method in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2207
diff
changeset
|
904 |
2605
0ec1e1b063d7
Deprecated String.bytesFrom method in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2604
diff
changeset
|
905 >> Buffer.from('YnVmZmVy', 'base64').toString() |
2211
660229c5c92f
Documented String.bytesFrom() method in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2207
diff
changeset
|
906 'buffer' |
660229c5c92f
Documented String.bytesFrom() method in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2207
diff
changeset
|
907 </example> |
660229c5c92f
Documented String.bytesFrom() method in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2207
diff
changeset
|
908 </tag-desc> |
660229c5c92f
Documented String.bytesFrom() method in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2207
diff
changeset
|
909 |
2267
c30048802769
Added links to njs reference from njs Compatibility.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2259
diff
changeset
|
910 <tag-name id="string_frombytes"><literal>String.prototype.fromBytes(<value>start</value>[, |
2186
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
911 <value>end</value>])</literal></tag-name> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
912 <tag-desc> |
2569
2edc64c05b0e
Removed ECMAScript methods from njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2564
diff
changeset
|
913 Returns a new Unicode string from a byte string |
2186
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
914 where each byte is replaced with a corresponding Unicode code point. |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
915 </tag-desc> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
916 |
2267
c30048802769
Added links to njs reference from njs Compatibility.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2259
diff
changeset
|
917 <tag-name id="string_fromutf8"><literal>String.prototype.fromUTF8(<value>start</value>[, |
2186
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
918 <value>end</value>])</literal></tag-name> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
919 <tag-desc> |
2569
2edc64c05b0e
Removed ECMAScript methods from njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2564
diff
changeset
|
920 Converts a byte string containing a valid UTF8 string |
2186
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
921 into a Unicode string, |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
922 otherwise <literal>null</literal> is returned. |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
923 </tag-desc> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
924 |
2579
63cef7604e0d
Minor review of njs Reference for typos and style.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2578
diff
changeset
|
925 <tag-name id="string_tobytes"><literal>String.prototype.toBytes(<value>start</value>[, |
63cef7604e0d
Minor review of njs Reference for typos and style.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2578
diff
changeset
|
926 <value>end</value>])</literal></tag-name> |
2186
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
927 <tag-desc> |
2569
2edc64c05b0e
Removed ECMAScript methods from njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2564
diff
changeset
|
928 Serializes a Unicode string to a byte string. |
2186
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
929 Returns <literal>null</literal> if a character larger than 255 is |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
930 found in the string. |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
931 </tag-desc> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
932 |
2582
e162a71453b0
Improved String.prototype.toString() for ordinary strings in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2579
diff
changeset
|
933 <tag-name id="string_tostring"><literal>String.prototype.toString(<value>encoding</value>)</literal></tag-name> |
2186
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
934 <tag-desc> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
935 <para> |
2582
e162a71453b0
Improved String.prototype.toString() for ordinary strings in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2579
diff
changeset
|
936 Encodes a string to |
2186
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
937 <literal>hex</literal>, |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
938 <literal>base64</literal>, or |
2582
e162a71453b0
Improved String.prototype.toString() for ordinary strings in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2579
diff
changeset
|
939 <literal>base64url</literal>: |
e162a71453b0
Improved String.prototype.toString() for ordinary strings in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2579
diff
changeset
|
940 <example> |
e162a71453b0
Improved String.prototype.toString() for ordinary strings in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2579
diff
changeset
|
941 >> 'αβγδ'.toString('base64url') |
e162a71453b0
Improved String.prototype.toString() for ordinary strings in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2579
diff
changeset
|
942 'zrHOss6zzrQ' |
e162a71453b0
Improved String.prototype.toString() for ordinary strings in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2579
diff
changeset
|
943 </example> |
e162a71453b0
Improved String.prototype.toString() for ordinary strings in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2579
diff
changeset
|
944 Before version <link doc="changes.xml" id="njs0.4.3">0.4.3</link>, |
e162a71453b0
Improved String.prototype.toString() for ordinary strings in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2579
diff
changeset
|
945 only a <link id="string_tobytes">byte string</link> could be encoded: |
2186
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
946 <example> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
947 >> 'αβγδ'.toUTF8().toString('base64url') |
2214
e029f4bc7ede
Added quotes to njs examples.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2212
diff
changeset
|
948 'zrHOss6zzrQ' |
2186
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
949 </example> |
2582
e162a71453b0
Improved String.prototype.toString() for ordinary strings in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2579
diff
changeset
|
950 </para> |
2186
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
951 </tag-desc> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
952 |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
953 <tag-name id="string_toutf8"><literal>String.prototype.toUTF8(<value>start</value>[, |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
954 <value>end</value>])</literal></tag-name> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
955 <tag-desc> |
2569
2edc64c05b0e
Removed ECMAScript methods from njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2564
diff
changeset
|
956 Serializes a Unicode string |
2186
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
957 to a byte string using UTF8 encoding. |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
958 <example> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
959 >> 'αβγδ'.toUTF8().length |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
960 8 |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
961 >> 'αβγδ'.length |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
962 4 |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
963 </example> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
964 </tag-desc> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
965 |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
966 </list> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
967 </para> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
968 |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
969 </section> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
970 |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
971 |
2585
7035221dbe37
Documented TextDecoder and TextEncoder in njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2583
diff
changeset
|
972 <section id="textdecoder" name="Text Decoder"> |
7035221dbe37
Documented TextDecoder and TextEncoder in njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2583
diff
changeset
|
973 |
7035221dbe37
Documented TextDecoder and TextEncoder in njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2583
diff
changeset
|
974 <para> |
7035221dbe37
Documented TextDecoder and TextEncoder in njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2583
diff
changeset
|
975 The <literal>TextDecoder</literal> |
7035221dbe37
Documented TextDecoder and TextEncoder in njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2583
diff
changeset
|
976 produces a stream of code points |
7035221dbe37
Documented TextDecoder and TextEncoder in njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2583
diff
changeset
|
977 from a stream of bytes |
7035221dbe37
Documented TextDecoder and TextEncoder in njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2583
diff
changeset
|
978 (<link doc="changes.xml" id="njs0.4.3">0.4.3</link>). |
7035221dbe37
Documented TextDecoder and TextEncoder in njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2583
diff
changeset
|
979 </para> |
7035221dbe37
Documented TextDecoder and TextEncoder in njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2583
diff
changeset
|
980 |
7035221dbe37
Documented TextDecoder and TextEncoder in njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2583
diff
changeset
|
981 <para> |
7035221dbe37
Documented TextDecoder and TextEncoder in njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2583
diff
changeset
|
982 <list type="tag"> |
7035221dbe37
Documented TextDecoder and TextEncoder in njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2583
diff
changeset
|
983 |
7035221dbe37
Documented TextDecoder and TextEncoder in njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2583
diff
changeset
|
984 <tag-name><literal>TextDecoder([[<value>encoding</value>], |
7035221dbe37
Documented TextDecoder and TextEncoder in njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2583
diff
changeset
|
985 <value>options</value>])</literal></tag-name> |
7035221dbe37
Documented TextDecoder and TextEncoder in njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2583
diff
changeset
|
986 <tag-desc> |
7035221dbe37
Documented TextDecoder and TextEncoder in njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2583
diff
changeset
|
987 Creates a new <literal>TextDecoder</literal> object |
7035221dbe37
Documented TextDecoder and TextEncoder in njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2583
diff
changeset
|
988 for specified <literal>encoding</literal>, |
7035221dbe37
Documented TextDecoder and TextEncoder in njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2583
diff
changeset
|
989 currently, only UTF-8 is supported. |
7035221dbe37
Documented TextDecoder and TextEncoder in njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2583
diff
changeset
|
990 The <literal>options</literal> is |
7035221dbe37
Documented TextDecoder and TextEncoder in njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2583
diff
changeset
|
991 <literal>TextDecoderOptions</literal> dictionary with the property: |
7035221dbe37
Documented TextDecoder and TextEncoder in njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2583
diff
changeset
|
992 |
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993 <list type="tag"> |
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994 |
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995 <tag-name><literal>fatal</literal></tag-name> |
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996 <tag-desc> |
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997 boolean flag indicating if |
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998 <link id="textdecoder_decode"><literal>TextDecoder.decode()</literal></link> |
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999 must throw the <value>TypeError</value> exception when |
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1000 a coding error is found, by default is <literal>false</literal>. |
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1001 </tag-desc> |
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1002 |
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1003 </list> |
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1004 </tag-desc> |
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1005 |
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1006 <tag-name id="textdecoder_encoding"><literal>TextDecoder.prototype.encoding</literal></tag-name> |
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1007 <tag-desc> |
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1008 Returns a string with the name of the encoding used by |
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1009 <link id="textdecoder"><literal>TextDecoder()</literal></link>, |
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1010 read-only. |
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1011 </tag-desc> |
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1012 |
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1013 <tag-name id="textdecoder_fatal"><literal>TextDecoder.prototype.fatal</literal></tag-name> |
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1014 <tag-desc> |
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1015 boolean flag, <literal>true</literal> if |
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1016 the error mode is fatal, |
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1017 read-only. |
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1018 </tag-desc> |
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1019 |
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1020 <tag-name id="textdecoder_ignorebom"><literal>TextDecoder.prototype.ignoreBOM</literal></tag-name> |
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1021 <tag-desc> |
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1022 boolean flag, <literal>true</literal> if |
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1023 the byte order marker is ignored, |
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1024 read-only. |
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1025 </tag-desc> |
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1026 |
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1027 <tag-name id="textdecoder_decode"><literal>TextDecoder.prototype.decode(<value>buffer</value>, |
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1028 [<value>options</value>])</literal></tag-name> |
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1029 <tag-desc> |
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1030 Returns a string with the text |
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1031 decoded from the <literal>buffer</literal> by |
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1032 <link id="textdecoder"><literal>TextDecoder()</literal></link>. |
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1033 The buffer can be <literal>ArrayBuffer</literal>. |
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1034 The <literal>options</literal> is |
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1035 <literal>TextDecodeOptions</literal> dictionary with the property: |
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1036 |
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1037 <list type="tag"> |
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1038 |
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1039 <tag-name><literal>stream</literal></tag-name> |
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1040 <tag-desc> |
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1041 boolean flag indicating if |
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1042 additional data will follow in subsequent calls to <literal>decode()</literal>: |
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1043 <literal>true</literal> if processing the data in chunks, and |
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1044 <literal>false</literal> for the final chunk |
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1045 or if the data is not chunked. |
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1046 By default is <literal>false</literal>. |
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1047 </tag-desc> |
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1048 |
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1049 </list> |
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1050 <example> |
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1051 >> (new TextDecoder()).decode(new Uint8Array([206,177,206,178])) |
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1052 αβ |
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1053 </example> |
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1054 </tag-desc> |
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1055 |
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1056 </list> |
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1057 </para> |
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1058 |
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1059 </section> |
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1060 |
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1061 |
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1062 <section id="textencoder" name="Text Encoder"> |
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1063 |
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1064 <para> |
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1065 The <literal>TextEncoder</literal> object |
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1066 produces a byte stream with UTF-8 encoding |
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1067 from a stream of code points |
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1068 (<link doc="changes.xml" id="njs0.4.3">0.4.3</link>). |
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1069 </para> |
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1070 |
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1071 <para> |
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1072 <list type="tag"> |
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1073 |
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1074 <tag-name><literal>TextEncoder()</literal></tag-name> |
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1075 <tag-desc> |
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1076 Returns a newly constructed <literal>TextEncoder</literal> |
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1077 that will generate a byte stream with UTF-8 encoding. |
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1078 </tag-desc> |
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1079 |
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1080 <tag-name id="textencoder_encode"><literal>TextEncoder.prototype.encode(<value>string</value>)</literal></tag-name> |
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1081 <tag-desc> |
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1082 Encodes <literal>string</literal> into a <literal>Uint8Array</literal> |
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1083 with UTF-8 encoded text. |
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1084 </tag-desc> |
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1085 |
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1086 <tag-name id="textencoder_encodeinto"><literal>TextEncoder.prototype.encodeInto(<value>string</value>, |
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1087 <value>uint8Array</value>)</literal></tag-name> |
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1088 <tag-desc> |
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1089 Encodes a <literal>string</literal> to UTF-8, |
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1090 puts the result into destination <literal>Uint8Array</literal>, and |
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1091 returns a dictionary object that shows the progress of the encoding. |
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1092 The dictionary object contains two members: |
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1093 |
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1094 <list type="tag"> |
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1095 |
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1096 <tag-name><literal>read</literal></tag-name> |
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1097 <tag-desc> |
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1098 the number of UTF-16 units of code from the source <literal>string</literal> |
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1099 converted to UTF-8 |
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1100 </tag-desc> |
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1101 |
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1102 <tag-name><literal>written</literal></tag-name> |
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1103 <tag-desc> |
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1104 the number of bytes modified in the destination <literal>Uint8Array</literal> |
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1105 </tag-desc> |
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1106 |
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1107 </list> |
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1108 </tag-desc> |
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|
1109 |
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|
1110 </list> |
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|
1111 </para> |
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|
1112 |
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|
1113 </section> |
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|
1114 |
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|
1115 |
2578
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|
1116 <section id="njs_api_timers" name="Timers"> |
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|
1117 |
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|
1118 <para> |
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|
1119 <list type="tag"> |
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|
1120 |
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|
1121 <tag-name id="cleartimeout"><literal>clearTimeout(<value>timeout</value>)</literal></tag-name> |
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|
1122 <tag-desc> |
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|
1123 Cancels a <literal>timeout</literal> object |
2579
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|
1124 created by <link id="settimeout"><literal>setTimeout()</literal></link>. |
2578
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|
1125 </tag-desc> |
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|
1126 |
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|
1127 <tag-name id="settimeout"><literal>setTimeout(<value>function</value>, |
2579
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|
1128 <value>milliseconds</value>[, |
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|
1129 <value>argument1</value>, |
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|
1130 <value>argumentN</value>])</literal></tag-name> |
2578
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|
1131 <tag-desc> |
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|
1132 Calls a <literal>function</literal> |
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|
1133 after a specified number of <literal>milliseconds</literal>. |
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|
1134 One or more optional <literal>arguments</literal> |
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1135 can be passed to the specified function. |
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|
1136 Returns a <literal>timeout</literal> object. |
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|
1137 <example> |
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|
1138 function handler(v) |
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|
1139 { |
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Restructured njs Reference.
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|
1140 // ... |
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|
1141 } |
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Restructured njs Reference.
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|
1142 |
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|
1143 t = setTimeout(handler, 12); |
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|
1144 |
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|
1145 // ... |
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|
1146 |
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|
1147 clearTimeout(t); |
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|
1148 </example> |
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|
1149 </tag-desc> |
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|
1150 |
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|
1151 </list> |
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|
1152 </para> |
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|
1153 |
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|
1154 </section> |
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|
1155 |
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|
1156 </section> |
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|
1157 |
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|
1158 |
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|
1159 <section id="built-in" name="Built-in Modules"> |
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|
1160 |
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|
1161 |
2609
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|
1162 <section id="buffer" name="Buffer"> |
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|
1163 |
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|
1164 <para> |
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|
1165 <list type="tag"> |
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|
1166 |
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|
1167 <tag-name id="buffer_alloc"><literal>Buffer.alloc(<value>size</value>[, |
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|
1168 <value>fill</value>[, |
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|
1169 <value>encoding</value>]]))</literal></tag-name> |
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|
1170 <tag-desc> |
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|
1171 <para> |
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|
1172 Allocates a new Buffer of a specified <value>size</value>. |
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|
1173 If <value>fill</value> is not specified, the Buffer will be zero-filled. |
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|
1174 If <value>fill</value> is specified, |
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|
1175 the allocated Buffer will be initialized by calling |
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|
1176 <link id="buf_fill"><literal>buf.fill(fill)</literal></link>. |
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|
1177 If <value>fill</value> and <value>encoding</value> are specified, |
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|
1178 the allocated Buffer will be initialized by calling |
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|
1179 <link id="buf_fill"><literal>buf.fill(fill, |
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|
1180 encoding)</literal></link>. |
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|
1181 </para> |
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|
1182 |
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|
1183 <para> |
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|
1184 The <value>fill</value> parameter may be a |
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|
1185 <value>string</value>, |
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|
1186 <value>Buffer</value>, |
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|
1187 <value>Uint8Array</value>, or |
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|
1188 <value>integer</value>. |
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|
1189 </para> |
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|
1190 </tag-desc> |
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|
1191 |
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|
1192 <tag-name id="buffer_alloc_unsafe"><literal>Buffer.allocUnsafe(<value>size</value>)</literal></tag-name> |
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|
1193 <tag-desc> |
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|
1194 <para> |
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|
1195 The same as |
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|
1196 <link id="buffer_alloc"><literal>Buffer.alloc()</literal></link>, |
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|
1197 with the difference that the memory allocated for the buffer is not initialized, |
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|
1198 the contents of the new buffer is unknown and may contain sensitive data. |
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|
1199 </para> |
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|
1200 </tag-desc> |
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|
1201 |
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|
1202 <tag-name id="buffer_bytelength"><literal>Buffer.byteLength(<value>value</value>[, |
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|
1203 <value>encoding</value>])</literal></tag-name> |
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|
1204 <tag-desc> |
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|
1205 Returns the byte length of a specified value, |
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|
1206 when encoded using <value>encoding</value>. |
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|
1207 The value can be a |
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|
1208 <literal>string</literal>, |
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|
1209 <literal>Buffer</literal>, |
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|
1210 <literal>TypedArray</literal>, |
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|
1211 <literal>DataView</literal>, or |
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|
1212 <literal>ArrayBuffer</literal>. |
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|
1213 If the value is a <value>string</value>, |
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|
1214 the <literal>encoding</literal> parameter is its encoding, can be |
2631
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|
1215 <value>utf8</value>, |
2609
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|
1216 <value>hex</value>, |
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|
1217 <value>base64</value>, |
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|
1218 <value>base64url</value>; |
2631
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|
1219 by default is <value>utf8</value>. |
2609
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|
1220 </tag-desc> |
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|
1221 |
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|
1222 <tag-name id="buffer_compare"><literal>Buffer.compare(<value>buffer1</value>, |
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|
1223 <value>buffer2</value>)</literal></tag-name> |
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|
1224 <tag-desc> |
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|
1225 Compares <value>buffer1</value> with <value>buffer2</value> |
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|
1226 when sorting arrays of Buffer instances. |
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|
1227 Returns |
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|
1228 <literal>0</literal> if |
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diff
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|
1229 <value>buffer1</value> is the same as <value>buffer2</value>, |
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Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
1230 <literal>1</literal> if |
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Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1231 <value>buffer2</value> should come before <value>buffer1</value> when sorted, or |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
1232 <literal>-1</literal> if |
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Added Buffer to njs Reference.
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parents:
2605
diff
changeset
|
1233 <value>buffer2</value> should come after <value>buffer1</value> when sorted. |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
1234 </tag-desc> |
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Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
1235 |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1236 <tag-name id="buffer_concat"><literal>Buffer.concat(<value>list</value>[, |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
1237 <value>totalLength</value>])</literal></tag-name> |
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Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
1238 <tag-desc> |
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Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
1239 Returns a new Buffer |
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Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1240 which is the result of concatenating all the Buffer instances in the list. |
99bd2ae8d2be
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Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
1241 If there are no items in the list or the total length is 0, |
99bd2ae8d2be
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Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
1242 a new zero-length Buffer is returned. |
99bd2ae8d2be
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Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
1243 If <value>totalLength</value> is not specified, |
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Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1244 it is calculated from the Buffer instances in list by adding their lengths. |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
1245 If <value>totalLength</value> is specified, |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
1246 it is coerced to an unsigned integer. |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
1247 If the combined length of the Buffers in list exceeds |
99bd2ae8d2be
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Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
1248 <value>totalLength</value>, |
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Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1249 the result is truncated to <value>totalLength</value>. |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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|
1250 </tag-desc> |
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Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
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diff
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|
1251 |
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Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
1252 <tag-name id="buffer_from_array"><literal>Buffer.from(<value>array</value>)</literal></tag-name> |
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Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
1253 <tag-desc> |
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parents:
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diff
changeset
|
1254 Allocates a new Buffer using an array of bytes |
99bd2ae8d2be
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Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
1255 in the range <literal>0</literal> – <literal>255</literal>. |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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|
1256 Array entries outside that range will be truncated. |
99bd2ae8d2be
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Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
1257 </tag-desc> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
1258 |
2612
6fdefb00858f
Documented Buffer.from(arrayBuffer) method in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2609
diff
changeset
|
1259 <tag-name id="buffer_from_arraybuffer"><literal>Buffer.from(<value>arrayBuffer</value>, |
6fdefb00858f
Documented Buffer.from(arrayBuffer) method in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2609
diff
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|
1260 <value>byteOffset</value>[, |
6fdefb00858f
Documented Buffer.from(arrayBuffer) method in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2609
diff
changeset
|
1261 <value>length</value>]])</literal></tag-name> |
6fdefb00858f
Documented Buffer.from(arrayBuffer) method in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2609
diff
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|
1262 <tag-desc> |
6fdefb00858f
Documented Buffer.from(arrayBuffer) method in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2609
diff
changeset
|
1263 Creates a view of the <value>ArrayBuffer</value> |
6fdefb00858f
Documented Buffer.from(arrayBuffer) method in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2609
diff
changeset
|
1264 without copying the underlying memory. |
6fdefb00858f
Documented Buffer.from(arrayBuffer) method in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2609
diff
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|
1265 The optional <value>byteOffset</value> and <value>length</value> arguments |
6fdefb00858f
Documented Buffer.from(arrayBuffer) method in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2609
diff
changeset
|
1266 specify a memory range within the <value>arrayBuffer</value> |
6fdefb00858f
Documented Buffer.from(arrayBuffer) method in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2609
diff
changeset
|
1267 that will be shared by the Buffer. |
6fdefb00858f
Documented Buffer.from(arrayBuffer) method in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2609
diff
changeset
|
1268 </tag-desc> |
6fdefb00858f
Documented Buffer.from(arrayBuffer) method in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2609
diff
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|
1269 |
2609
99bd2ae8d2be
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Yaroslav Zhuravlev <yar@nginx.com>
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diff
changeset
|
1270 <tag-name id="buffer_from_buffer"><literal>Buffer.from(<value>buffer</value>)</literal></tag-name> |
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|
1271 <tag-desc> |
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Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
1272 Copies the passed buffer data onto a new Buffer instance. |
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parents:
2605
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|
1273 </tag-desc> |
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Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
1274 |
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Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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|
1275 <tag-name id="buffer_from_object"><literal>Buffer.from(<value>object</value>[, |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
1276 <value>offsetOrEncoding</value>[, |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
1277 <value>length</value>]])</literal></tag-name> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
1278 <tag-desc> |
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parents:
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diff
changeset
|
1279 For objects whose <literal>valueOf()</literal> function |
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parents:
2605
diff
changeset
|
1280 returns a value not strictly equal to object, |
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Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
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|
1281 returns |
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Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1282 <literal>Buffer.from(object.valueOf()</literal>, |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
1283 <literal>offsetOrEncoding</literal>, |
99bd2ae8d2be
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parents:
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diff
changeset
|
1284 <literal>length</literal>). |
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parents:
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diff
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|
1285 </tag-desc> |
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Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1286 |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1287 <tag-name id="buffer_from_string"><literal>Buffer.from(<value>string</value>[, |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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|
1288 <value>encoding</value>])</literal></tag-name> |
99bd2ae8d2be
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Yaroslav Zhuravlev <yar@nginx.com>
parents:
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|
1289 <tag-desc> |
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parents:
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changeset
|
1290 Creates a new Buffer with a <value>string</value>. |
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parents:
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|
1291 The <value>encoding</value> parameter identifies the character encoding |
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Yaroslav Zhuravlev <yar@nginx.com>
parents:
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|
1292 to be used when converting a string into bytes. |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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changeset
|
1293 The encoding can be |
2631
7da360f50017
Unified spelling of "utf-8" in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2630
diff
changeset
|
1294 <literal>utf8</literal>, |
2609
99bd2ae8d2be
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parents:
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diff
changeset
|
1295 <literal>hex</literal>, |
99bd2ae8d2be
Added Buffer to njs Reference.
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parents:
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diff
changeset
|
1296 <literal>base64</literal>, |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
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|
1297 <literal>base64url</literal>; |
2631
7da360f50017
Unified spelling of "utf-8" in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2630
diff
changeset
|
1298 by default is <literal>utf8</literal>. |
2609
99bd2ae8d2be
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|
1299 </tag-desc> |
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|
1300 |
99bd2ae8d2be
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parents:
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|
1301 <tag-name id="buffer_is_buffer"><literal>Buffer.isBuffer(<value>object</value>)</literal></tag-name> |
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|
1302 <tag-desc> |
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|
1303 A boolean value, |
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diff
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|
1304 returns <literal>true</literal> if <value>object</value> is a Buffer. |
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|
1305 </tag-desc> |
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|
1306 |
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Yaroslav Zhuravlev <yar@nginx.com>
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2605
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changeset
|
1307 <tag-name id="buffer_is_encoding"><literal>Buffer.isEncoding(<value>encoding</value>)</literal></tag-name> |
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parents:
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|
1308 <tag-desc> |
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|
1309 A boolean value, |
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parents:
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diff
changeset
|
1310 returns <literal>true</literal> |
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diff
changeset
|
1311 if encoding is the name of a supported character encoding. |
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|
1312 </tag-desc> |
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|
1313 |
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|
1314 <tag-name id="buf_index"><literal>buffer[<value>index</value>]</literal></tag-name> |
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|
1315 <tag-desc> |
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2631
diff
changeset
|
1316 The index operator that can be used to get and set the octet |
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Minor corrections in njs reference.
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parents:
2631
diff
changeset
|
1317 at position <literal>index</literal> in <literal>buffer</literal>. |
2609
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|
1318 The values refer to individual bytes, |
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parents:
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diff
changeset
|
1319 so the legal value range is between 0 and 255 (decimal). |
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|
1320 </tag-desc> |
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|
1321 |
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changeset
|
1322 <tag-name id="buf_buffer"><literal>buf.buffer</literal></tag-name> |
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|
1323 <tag-desc> |
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|
1324 The underlying <literal>ArrayBuffer</literal> object |
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|
1325 based on which this Buffer object is created. |
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|
1326 </tag-desc> |
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changeset
|
1327 |
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|
1328 <tag-name id="buf_byte_offset"><literal>buf.byteOffset</literal></tag-name> |
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|
1329 <tag-desc> |
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|
1330 An integer, |
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parents:
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|
1331 specifying the <literal>byteOffset</literal> of the Buffers |
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|
1332 underlying <literal>ArrayBuffer</literal> object. |
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|
1333 </tag-desc> |
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|
1334 |
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|
1335 <tag-name id="buf_compare"><literal>buf.compare(<value>target</value>[, |
99bd2ae8d2be
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|
1336 <value>targetStart</value>[, |
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diff
changeset
|
1337 <value>targetEnd</value>[, |
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changeset
|
1338 <value>sourceStart</value>[, |
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parents:
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diff
changeset
|
1339 <value>sourceEnd</value>]]]])</literal></tag-name> |
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changeset
|
1340 <tag-desc> |
2647
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diff
changeset
|
1341 Compares buffer with <value>target</value> and returns a number |
2609
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changeset
|
1342 indicating whether buffer comes before, after, or is the same |
2647
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Minor corrections in njs reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2631
diff
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|
1343 as <value>target</value> in sort order. |
2609
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Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
1344 Comparison is based on the actual sequence of bytes in each Buffer. |
2647
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Minor corrections in njs reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2631
diff
changeset
|
1345 The <literal>targetStart</literal> is an integer specifying |
0085d9f7dc3f
Minor corrections in njs reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2631
diff
changeset
|
1346 the offset within <value>target</value> at which to begin comparison, |
2609
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1347 by default is 0. |
2647
0085d9f7dc3f
Minor corrections in njs reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2631
diff
changeset
|
1348 The <literal>targetEnd</literal> is an integer specifying |
0085d9f7dc3f
Minor corrections in njs reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2631
diff
changeset
|
1349 the offset within <value>target</value> at which to end comparison, |
2609
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1350 by default is <literal>target.length</literal>. |
2647
0085d9f7dc3f
Minor corrections in njs reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2631
diff
changeset
|
1351 The <literal>sourceStart</literal> is an integer specifying |
0085d9f7dc3f
Minor corrections in njs reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2631
diff
changeset
|
1352 the offset within buffer at which to begin comparison, |
2609
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1353 by default is 0. |
2647
0085d9f7dc3f
Minor corrections in njs reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2631
diff
changeset
|
1354 The <literal>sourceEnd</literal> is an integer specifying |
0085d9f7dc3f
Minor corrections in njs reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2631
diff
changeset
|
1355 the offset within buffer at which to end comparison (not inclusive), |
2609
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1356 by default is <literal>buf.length</literal>. |
99bd2ae8d2be
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Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
1357 </tag-desc> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
1358 |
99bd2ae8d2be
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Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
1359 <tag-name id="buf_copy"><literal>buf.copy(<value>target</value>[, |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
1360 <value>targetStart</value>[, |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
1361 <value>sourceStart</value>[, |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1362 <value>sourceEnd</value>]]])</literal></tag-name> |
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Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1363 <tag-desc> |
2647
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Minor corrections in njs reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2631
diff
changeset
|
1364 Copies data from a region of buffer to a region in <value>target</value>, |
2609
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1365 even if the target memory region overlaps with buffer. |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
1366 The <literal>target</literal> parameter is a |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1367 <value>Buffer</value> or <value>Uint8Array</value> to copy into. |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
1368 |
99bd2ae8d2be
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Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
1369 <para> |
2647
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Minor corrections in njs reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2631
diff
changeset
|
1370 The <literal>targetStart</literal> is an integer specifying |
0085d9f7dc3f
Minor corrections in njs reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2631
diff
changeset
|
1371 the offset within target at which to begin writing, |
2609
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1372 by default is 0. |
2647
0085d9f7dc3f
Minor corrections in njs reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2631
diff
changeset
|
1373 The <literal>sourceStart</literal> is an integer specifying |
0085d9f7dc3f
Minor corrections in njs reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2631
diff
changeset
|
1374 the offset within buffer from which to begin copying, |
2609
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1375 by default is 0. |
2647
0085d9f7dc3f
Minor corrections in njs reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2631
diff
changeset
|
1376 The <literal>sourceEnd</literal> is an integer specifying |
0085d9f7dc3f
Minor corrections in njs reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2631
diff
changeset
|
1377 the offset within buffer at which to stop copying (not inclusive) |
2609
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1378 by default is <value>buf.length</value>. |
99bd2ae8d2be
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Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
1379 </para> |
99bd2ae8d2be
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Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1380 </tag-desc> |
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Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
1381 |
99bd2ae8d2be
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Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1382 <tag-name id="buf_equals"><literal>buf.equals(<value>otherBuffer</value>)</literal></tag-name> |
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Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
1383 <tag-desc> |
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Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1384 A boolean value, |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1385 returns <literal>true</literal> if both Buffer and <value>otherBuffer</value> |
99bd2ae8d2be
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Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
1386 have exactly the same bytes. |
99bd2ae8d2be
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Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
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|
1387 </tag-desc> |
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Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1388 |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1389 <tag-name id="buf_fill"><literal>buf.fill(<value>value</value>[, |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1390 <value>offset</value>[, |
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Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
1391 <value>end</value>]][, |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1392 <value>encoding</value>])</literal></tag-name> |
99bd2ae8d2be
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Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
1393 <tag-desc> |
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parents:
2605
diff
changeset
|
1394 Fills the Buffer with the specified <value>value</value>. |
99bd2ae8d2be
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parents:
2605
diff
changeset
|
1395 If the <value>offset</value> and <value>end</value> are not specified, |
99bd2ae8d2be
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Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
1396 the entire Buffer will be filled. |
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Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1397 The <value>value</value> is coerced to <value>uint32</value> if it is not a |
99bd2ae8d2be
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Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
1398 <literal>string</literal>, |
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parents:
2605
diff
changeset
|
1399 <literal>Buffer</literal>, or |
99bd2ae8d2be
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Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1400 <literal>integer</literal>. |
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Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
1401 If the resulting integer is greater than 255, |
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Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
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|
1402 the Buffer will be filled with <value>value</value> and 255. |
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parents:
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diff
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|
1403 </tag-desc> |
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2605
diff
changeset
|
1404 |
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Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1405 <tag-name id="buf_includes"><literal>buf.includes(<value>value</value>[, |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
1406 <value>byteOffset</value>][, |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1407 <value>encoding</value>])</literal></tag-name> |
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parents:
2605
diff
changeset
|
1408 <tag-desc> |
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parents:
2605
diff
changeset
|
1409 Equivalent to |
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Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1410 <link id="buf_indexof"><literal>buf.indexOf()</literal></link> |
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Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
1411 <literal>!== -1</literal>, |
99bd2ae8d2be
Added Buffer to njs Reference.
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parents:
2605
diff
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|
1412 returns <literal>true</literal> if the <value>value</value> was found |
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Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1413 in Buffer. |
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Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1414 </tag-desc> |
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diff
changeset
|
1415 |
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Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1416 <tag-name id="buf_indexof"><literal>buf.indexOf(<value>value</value>[, |
99bd2ae8d2be
Added Buffer to njs Reference.
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parents:
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diff
changeset
|
1417 <value>byteOffset</value>][, |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
1418 <value>encoding</value>])</literal></tag-name> |
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parents:
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diff
changeset
|
1419 <tag-desc> |
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parents:
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diff
changeset
|
1420 Returns an integer which is the index of the first occurrence of |
99bd2ae8d2be
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parents:
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diff
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|
1421 <value>value</value> in Buffer, or <value>-1</value> |
99bd2ae8d2be
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parents:
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diff
changeset
|
1422 if Buffer does not contain value. |
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parents:
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diff
changeset
|
1423 The <value>value</value> can be a |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
1424 <literal>string</literal> with specified <value>encoding</value> |
2631
7da360f50017
Unified spelling of "utf-8" in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2630
diff
changeset
|
1425 (by default <value>utf8</value>), |
2609
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parents:
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diff
changeset
|
1426 <literal>Buffer</literal>, |
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parents:
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diff
changeset
|
1427 <literal>Unit8Array</literal>, |
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parents:
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changeset
|
1428 or a number between 0 and 255. |
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diff
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|
1429 </tag-desc> |
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|
1430 |
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Yaroslav Zhuravlev <yar@nginx.com>
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changeset
|
1431 <tag-name id="buf_lastindexof"><literal>buf.lastIndexOf(<value>value</value>[, |
99bd2ae8d2be
Added Buffer to njs Reference.
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parents:
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changeset
|
1432 <value>byteOffset</value>][, |
99bd2ae8d2be
Added Buffer to njs Reference.
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parents:
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diff
changeset
|
1433 <value>encoding</value>])</literal></tag-name> |
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|
1434 <tag-desc> |
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changeset
|
1435 The same as |
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diff
changeset
|
1436 <link id="buf_indexof"><literal>buf.indexOf()</literal></link>, |
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|
1437 except the last occurrence of the <value>value</value> is found |
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parents:
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|
1438 instead of the first occurrence. |
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|
1439 The <value>value</value> can be a string, Buffer, or |
99bd2ae8d2be
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parents:
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changeset
|
1440 integer between 1 and 255. |
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diff
changeset
|
1441 If the <value>value</value> is an empty string or empty Buffer, |
99bd2ae8d2be
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parents:
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diff
changeset
|
1442 <literal>byteOffset</literal> will be returned. |
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diff
changeset
|
1443 </tag-desc> |
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|
1444 |
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changeset
|
1445 <tag-name id="buf_length"><literal>buf.length</literal></tag-name> |
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|
1446 <tag-desc> |
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changeset
|
1447 Returns the number of bytes in Buffer. |
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diff
changeset
|
1448 </tag-desc> |
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changeset
|
1449 |
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parents:
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diff
changeset
|
1450 <tag-name id="buf_readintbe"><literal>buf.readIntBE(<value>offset</value>, |
99bd2ae8d2be
Added Buffer to njs Reference.
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parents:
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diff
changeset
|
1451 <value>byteLength</value>)</literal></tag-name> |
99bd2ae8d2be
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changeset
|
1452 <tag-desc> |
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diff
changeset
|
1453 Reads the <value>byteLength</value> from <literal>buf</literal> |
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parents:
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diff
changeset
|
1454 at the specified <value>offset</value> |
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parents:
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diff
changeset
|
1455 and interprets the result as a big-endian, |
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parents:
2605
diff
changeset
|
1456 two's complement signed value supporting up to 48 bits of accuracy. |
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Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
1457 The <value>byteLength</value> parameter is an integer between 1 and 6 |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1458 specifying the number of bytes to read. |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1459 <para> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1460 The similar methods are also supported: |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1461 <literal>buf.readInt8([offset])</literal>, |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1462 <literal>buf.readInt16BE([offset])</literal>, |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1463 <literal>buf.readInt32BE([offset])</literal>. |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1464 </para> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1465 </tag-desc> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1466 |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1467 <tag-name id="buf_readintle"><literal>buf.readIntLE(<value>offset</value>, |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1468 <value>byteLength</value>)</literal></tag-name> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1469 <tag-desc> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1470 Reads the <value>byteLength</value> from <literal>buf</literal> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1471 at the specified <value>offset</value> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1472 and interprets the result as a little-endian, |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1473 two's complement signed value supporting up to 48 bits of accuracy. |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1474 The <value>byteLength</value> parameter is an integer between 1 and 6 |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1475 specifying the number of bytes to read. |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1476 <para> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1477 The similar methods are also supported: |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1478 <literal>buf.readInt8([offset])</literal>, |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1479 <literal>buf.readInt16LE([offset])</literal>, |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1480 <literal>buf.readInt32LE([offset])</literal>. |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1481 </para> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1482 </tag-desc> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1483 |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1484 <tag-name id="buf_readuintbe"><literal>buf.readUIntBE(<value>offset</value>, |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1485 <value>byteLength</value>)</literal></tag-name> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1486 <tag-desc> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1487 Reads the <value>byteLength</value> from <literal>buf</literal> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1488 at the specified <value>offset</value> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1489 and interprets the result as a big-endian |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1490 integer supporting up to 48 bits of accuracy. |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1491 The <value>byteLength</value> parameter is an integer between 1 and 6 |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1492 specifying the number of bytes to read. |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1493 <para> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1494 The similar methods are also supported: |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1495 <literal>buf.readUInt8([offset])</literal>, |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1496 <literal>buf.readUInt16BE([offset])</literal>, |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1497 <literal>buf.readUInt32BE([offset])</literal>. |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1498 </para> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1499 </tag-desc> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1500 |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1501 <tag-name id="buf_readuintle"><literal>buf.readUIntLE(<value>offset</value>, |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1502 <value>byteLength</value>)</literal></tag-name> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1503 <tag-desc> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1504 Reads the <value>byteLength</value> from <literal>buf</literal> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1505 at the specified <value>offset</value> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1506 and interprets the result as a little-endian |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1507 integer supporting up to 48 bits of accuracy. |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1508 The <value>byteLength</value> parameter is an integer between 1 and 6 |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1509 specifying the number of bytes to read. |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1510 <para> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1511 The similar methods are also supported: |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1512 <literal>buf.readUInt8([offset])</literal>, |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1513 <literal>buf.readUInt16LE([offset])</literal>, |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1514 <literal>buf.readUInt32LE([offset])</literal>. |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1515 </para> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1516 </tag-desc> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1517 |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1518 <tag-name id="buf_readdobulebe"><literal>buf.readDoubleBE</literal>([<value>offset</value>])</tag-name> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1519 <tag-desc> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1520 Reads a 64-bit, big-endian double from <literal>buf</literal> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1521 at the specified <value>offset</value>. |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1522 </tag-desc> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1523 |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1524 <tag-name id="buf_readdobulele"><literal>buf.readDoubleLE</literal>([<value>offset</value>])</tag-name> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1525 <tag-desc> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1526 Reads a 64-bit, little-endian double from <literal>buf</literal> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1527 at the specified <value>offset</value>. |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1528 </tag-desc> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1529 |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1530 <tag-name id="buf_readfloatbe"><literal>buf.readFloatBE</literal>([<value>offset</value>])</tag-name> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1531 <tag-desc> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1532 Reads a 32-bit, big-endian float from <literal>buf</literal> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1533 at the specified <value>offset</value>. |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1534 </tag-desc> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1535 |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1536 <tag-name id="buf_readfloatle"><literal>buf.readFloatLE</literal>([<value>offset</value>])</tag-name> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1537 <tag-desc> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1538 Reads a 32-bit, little-endian float from <literal>buf</literal> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1539 at the specified <value>offset</value>. |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1540 </tag-desc> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1541 |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1542 <tag-name id="buf_subarray"><literal>buf.subarray[<value>start</value>[, |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1543 <value>end</value>]])</literal></tag-name> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1544 <tag-desc> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1545 Returns a new <literal>buf</literal> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1546 that references the same memory as the original, |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1547 but offset and cropped by |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1548 <value>start</value> and <value>end</value>. |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1549 If <value>end</value> is greater than |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1550 <link id="buf_length"><literal>buf.length</literal></link>, |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1551 the same result as that of end equal to |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1552 <link id="buf_length"><literal>buf.length</literal></link> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
1553 is returned. |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1554 </tag-desc> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1555 |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1556 <tag-name id="buf_slice"><literal>buf.slice[<value>start</value>[, |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1557 <value>end</value>]])</literal></tag-name> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1558 <tag-desc> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1559 Returns a new <literal>buf</literal> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1560 that references the same memory as the original, |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1561 but offset and cropped by the |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1562 <value>start</value> and <value>end</value> values. |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1563 The method is not compatible with the |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1564 <literal>Uint8Array.prototype.slice()</literal>, |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1565 which is a superclass of Buffer. |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1566 To copy the slice, use |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1567 <literal>Uint8Array.prototype.slice()</literal>. |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1568 </tag-desc> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1569 |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1570 <tag-name id="buf_swap16"><literal>buf.swap16</literal>()</tag-name> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
1571 <tag-desc> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1572 Interprets <literal>buf</literal> as an array of unsigned 16-bit numbers |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1573 and swaps the byte order in-place. |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1574 Throws an error if |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1575 <link id="buf_length"><literal>buf.length</literal></link> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1576 is not a multiple of 2. |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1577 </tag-desc> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1578 |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1579 <tag-name id="buf_swap32"><literal>buf.swap32</literal>()</tag-name> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1580 <tag-desc> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1581 Interprets <literal>buf</literal> as an array of unsigned 32-bit numbers |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1582 and swaps the byte order in-place. |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1583 Throws an error if |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1584 <link id="buf_length"><literal>buf.length</literal></link> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1585 is not a multiple of 4. |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1586 </tag-desc> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1587 |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1588 <tag-name id="buf_swap64"><literal>buf.swap64</literal>()</tag-name> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1589 <tag-desc> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1590 Interprets <literal>buf</literal> as an array of 64-bit numbers |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1591 and swaps byte order in-place. |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1592 Throws an error if |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1593 <link id="buf_length"><literal>buf.length</literal></link> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1594 is not a multiple of 8. |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1595 </tag-desc> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1596 |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1597 <tag-name id="buf_tojson"><literal>buf.toJSON</literal>()</tag-name> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1598 <tag-desc> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1599 Returns a JSON representation of <literal>buf.</literal> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1600 <literal>JSON.stringify()</literal> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1601 implicitly calls this function when stringifying a Buffer instance. |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1602 </tag-desc> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1603 |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1604 <tag-name id="buf_tostring"><literal>buf.toString([<value>encoding</value>[, |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1605 <value>start</value>[, |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1606 <value>end</value>]]])</literal></tag-name> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1607 <tag-desc> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1608 Decodes <literal>buf</literal> to a string |
2647
0085d9f7dc3f
Minor corrections in njs reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2631
diff
changeset
|
1609 according to the specified character <value>encoding</value> |
2631
7da360f50017
Unified spelling of "utf-8" in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2630
diff
changeset
|
1610 which can be <value>utf8</value>, |
2609
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1611 <value>hex</value>, |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1612 <value>base64</value>, |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1613 <value>base64url</value>. |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1614 The <value>start</value> and <value>end</value> parameters |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1615 may be passed to decode only a subset of Buffer. |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1616 </tag-desc> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1617 |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1618 <tag-name id="buf_write"><literal>buf.write(<value>string</value>[, |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1619 <value>offset</value>[, |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1620 <value>length</value>]][, |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1621 <value>encoding</value>])</literal></tag-name> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1622 <tag-desc> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1623 Writes a <value>string</value> to <literal>buf</literal> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1624 at <value>offset</value> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1625 according to the character <value>encoding</value>. |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1626 The <value>length</value> parameter is the number of bytes to write. |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1627 If Buffer did not contain enough space to fit the entire string, |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1628 only part of string will be written, |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1629 however, partially encoded characters will not be written. |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1630 The <value>encoding</value> can be |
2631
7da360f50017
Unified spelling of "utf-8" in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2630
diff
changeset
|
1631 <value>utf8</value>, |
2609
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1632 <value>hex</value>, |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1633 <value>base64</value>, |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1634 <value>base64url</value>. |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1635 </tag-desc> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1636 |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1637 <tag-name id="buf_writeintbe"><literal>buf.writeIntBE(<value>value</value>, |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1638 <value>offset</value>, |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1639 <value>byteLength</value>)</literal></tag-name> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1640 <tag-desc> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1641 Writes <value>byteLength</value> bytes of <value>value</value> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1642 to <literal>buf</literal> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1643 at the specified <value>offset</value> as big-endian. |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1644 Supports up to 48 bits of accuracy. |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1645 The <value>byteLength</value> parameter is an integer between 1 and 6 |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1646 specifying the number of bytes to read. |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1647 <para> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1648 The following similar methods are also supported: |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1649 <literal>buf.writeInt8</literal>, |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1650 <literal>buf.writeInt16BE</literal>, |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1651 <literal>buf.writeInt32BE</literal>. |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1652 </para> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1653 </tag-desc> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1654 |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1655 <tag-name id="buf_writeintle"><literal>buf.writeIntLE(<value>value</value>, |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1656 <value>offset</value>, |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1657 <value>byteLength</value>)</literal></tag-name> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1658 <tag-desc> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1659 Writes <value>byteLength</value> bytes of <value>value</value> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1660 to <literal>buf</literal> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1661 at the specified <value>offset</value> as little-endian. |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1662 Supports up to 48 bits of accuracy. |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1663 The <value>byteLength</value> parameter is an integer between 1 and 6 |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1664 specifying the number of bytes to read. |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1665 <para> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1666 The following similar methods are also supported: |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1667 <literal>buf.writeInt8</literal>, |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1668 <literal>buf.writeInt16LE</literal>, |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1669 <literal>buf.writeInt32LE</literal>. |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1670 </para> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1671 </tag-desc> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1672 |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1673 <tag-name id="buf_writeuintbe"><literal>buf.writeUIntBE(<value>value</value>, |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1674 <value>offset</value>, |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1675 <value>byteLength</value>)</literal></tag-name> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1676 <tag-desc> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1677 Writes <value>byteLength</value> bytes of <value>value</value> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1678 to <literal>buf</literal> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1679 at the specified <value>offset</value> as big-endian. |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1680 Supports up to 48 bits of accuracy. |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1681 The <value>byteLength</value> parameter is an integer between 1 and 6 |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1682 specifying the number of bytes to read. |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1683 <para> |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1684 The following similar methods are also supported: |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1685 <literal>buf.writeUInt8</literal>, |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1686 <literal>buf.writeUInt16BE</literal>, |
99bd2ae8d2be
Added Buffer to njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2605
diff
changeset
|
1687 <literal>buf.writeUInt32BE</literal>. |
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|
1688 </para> |
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|
1689 </tag-desc> |
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|
1690 |
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|
1691 <tag-name id="buf_writeuintle"><literal>buf.writeUIntLE(<value>value</value>, |
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1692 <value>offset</value>, |
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|
1693 <value>byteLength</value>)</literal></tag-name> |
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1694 <tag-desc> |
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1695 Writes <value>byteLength</value> bytes of <value>value</value> |
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|
1696 to <literal>buf</literal> |
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1697 at the specified <value>offset</value> as little-endian. |
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1698 Supports up to 48 bits of accuracy. |
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1699 The <value>byteLength</value> parameter is an integer between 1 and 6 |
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1700 specifying the number of bytes to read. |
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|
1701 <para> |
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1702 The following similar methods are also supported: |
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1703 <literal>buf.writeUInt8</literal>, |
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|
1704 <literal>buf.writeUInt16LE</literal>, |
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1705 <literal>buf.writeUInt32LE</literal>. |
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|
1706 </para> |
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1707 </tag-desc> |
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1708 |
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1709 <tag-name id="buf_writedoublebe"><literal>buf.writeDoubleBE(<value>value</value>, |
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1710 [<value>offset</value>])</literal></tag-name> |
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1711 <tag-desc> |
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1712 Writes the <value>value</value> to <literal>buf</literal> |
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1713 at the specified <value>offset</value> as big-endian. |
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1714 </tag-desc> |
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1715 |
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1716 <tag-name id="buf_writedoublele"><literal>buf.writeDoubleLE(<value>value</value>, |
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1717 [<value>offset</value>])</literal></tag-name> |
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1718 <tag-desc> |
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1719 Writes the <value>value</value> to <literal>buf</literal> |
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1720 at the specified <value>offset</value> as little-endian. |
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|
1721 </tag-desc> |
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|
1722 |
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1723 <tag-name id="buf_writefloatbe"><literal>buf.writeFloatBE(<value>value</value>, |
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|
1724 [<value>offset</value>])</literal></tag-name> |
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1725 <tag-desc> |
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1726 Writes the <value>value</value> to <literal>buf</literal> |
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1727 at the specified <value>offset</value> as big-endian. |
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1728 </tag-desc> |
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|
1729 |
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1730 <tag-name id="buf_writefloatle"><literal>buf.writeFloatLE(<value>value</value>, |
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1731 [<value>offset</value>])</literal></tag-name> |
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1732 <tag-desc> |
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1733 Writes the <value>value</value> to <literal>buf</literal> |
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1734 at the specified <value>offset</value> as little-endian. |
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1735 </tag-desc> |
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1736 |
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|
1737 </list> |
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1738 </para> |
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|
1739 |
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|
1740 </section> |
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1741 |
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1742 |
2177 | 1743 <section id="crypto" name="Crypto"> |
1744 | |
1745 <para> | |
1746 The Crypto module provides cryptographic functionality support. | |
1747 The Crypto module object is returned by <literal>require('crypto')</literal>. | |
1748 </para> | |
1749 | |
1750 <para> | |
1751 <list type="tag"> | |
1752 | |
2267
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1753 <tag-name id="crypto_createhash"><literal>crypto.createHash(<value>algorithm</value>)</literal></tag-name> |
2177 | 1754 <tag-desc> |
1755 Creates and returns a <link id="crypto_hash">Hash</link> object | |
1756 that can be used to generate hash digests | |
1757 using the given <value>algorithm</value>. | |
2496
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1758 The algorithm can be |
2177 | 1759 <literal>md5</literal>, |
1760 <literal>sha1</literal>, and | |
1761 <literal>sha256</literal>. | |
1762 </tag-desc> | |
1763 | |
2267
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1764 <tag-name id="crypto_createhmac"><literal>crypto.createHmac(<value>algorithm</value>, |
2177 | 1765 <value>secret key</value>)</literal></tag-name> |
1766 <tag-desc> | |
2579
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1767 Creates and returns an <link id="crypto_hmac">HMAC</link> object that uses |
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1768 the given <value>algorithm</value> and <value>secret key</value>. |
2496
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1769 The algorithm can be |
2177 | 1770 <literal>md5</literal>, |
1771 <literal>sha1</literal>, and | |
1772 <literal>sha256</literal>. | |
1773 </tag-desc> | |
1774 | |
1775 </list> | |
1776 </para> | |
1777 | |
1778 | |
1779 <section id="crypto_hash" name="Hash"> | |
1780 | |
1781 <para> | |
1782 <list type="tag"> | |
1783 | |
2601 | 1784 <tag-name id="crypto_hash_update"><literal>hash.update(<value>data</value>)</literal></tag-name> |
2177 | 1785 <tag-desc> |
1786 Updates the hash content with the given <value>data</value>. | |
1787 </tag-desc> | |
1788 | |
2601 | 1789 <tag-name id="crypto_hash_digest"><literal>hash.digest([<value>encoding</value>])</literal></tag-name> |
2177 | 1790 <tag-desc> |
1791 Calculates the digest of all of the data passed using | |
1792 <literal>hash.update()</literal>. | |
1793 The encoding can be | |
1794 <literal>hex</literal>, | |
1795 <literal>base64</literal>, and | |
1796 <literal>base64url</literal>. | |
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1797 If encoding is not provided, a Buffer object |
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1798 (<link doc="changes.xml" id="njs0.4.4">0.4.4</link>) is returned. |
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|
1799 <note> |
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1800 Before version (<link doc="changes.xml" id="njs0.4.4">0.4.4</link>), |
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1801 a byte string was returned instead of a Buffer object. |
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1802 </note> |
2177 | 1803 </tag-desc> |
1804 | |
1805 </list> | |
1806 </para> | |
1807 | |
1808 <para> | |
1809 <example> | |
1810 >> var cr = require('crypto') | |
1811 undefined | |
1812 | |
1813 >> cr.createHash('sha1').update('A').update('B').digest('base64url') | |
2214
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|
1814 'BtlFlCqiamG-GMPiK_GbvKjdK10' |
2177 | 1815 </example> |
1816 </para> | |
1817 | |
1818 </section> | |
1819 | |
1820 | |
1821 <section id="crypto_hmac" name="HMAC"> | |
1822 | |
1823 <para> | |
1824 <list type="tag"> | |
1825 | |
2601 | 1826 <tag-name id="crypto_hmac_update"><literal>hmac.update(<value>data</value>)</literal></tag-name> |
2177 | 1827 <tag-desc> |
1828 Updates the HMAC content with the given <value>data</value>. | |
1829 </tag-desc> | |
1830 | |
2601 | 1831 <tag-name id="crypto_hmac_digest"><literal>hmac.digest([<value>encoding</value>])</literal></tag-name> |
2177 | 1832 <tag-desc> |
1833 Calculates the HMAC digest of all of the data passed using | |
1834 <literal>hmac.update()</literal>. | |
1835 The encoding can be | |
1836 <literal>hex</literal>, | |
1837 <literal>base64</literal>, and | |
1838 <literal>base64url</literal>. | |
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1839 If encoding is not provided, a Buffer object |
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1840 (<link doc="changes.xml" id="njs0.4.4">0.4.4</link>) is returned. |
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1841 <note> |
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1842 Before version <link doc="changes.xml" id="njs0.4.4">0.4.4</link>, |
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1843 a byte string was returned instead of a Buffer object. |
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1844 </note> |
2177 | 1845 </tag-desc> |
1846 </list> | |
1847 </para> | |
1848 | |
1849 <para> | |
1850 <example> | |
1851 >> var cr = require('crypto') | |
1852 undefined | |
1853 | |
1854 >> cr.createHmac('sha1', 'secret.key').update('AB').digest('base64url') | |
2214
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1855 'Oglm93xn23_MkiaEq_e9u8zk374' |
2177 | 1856 </example> |
1857 </para> | |
1858 | |
1859 </section> | |
1860 | |
1861 </section> | |
1862 | |
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1863 |
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1864 <section id="njs_api_fs" name="File System"> |
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1865 |
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1866 <para> |
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1867 The File System module provides operations with files. |
2507 | 1868 </para> |
1869 | |
1870 <para> | |
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1871 The module object is returned by <literal>require('fs')</literal>. |
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1872 Since <link doc="changes.xml" id="njs0.3.9">0.3.9</link>, |
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1873 promissified versions of file system methods are available through |
2507 | 1874 <literal>require('fs').promises</literal> object: |
1875 <example> | |
1876 > var fs = require('fs').promises; | |
1877 undefined | |
1878 > fs.readFile("/file/path").then((data)=>console.log(data)) | |
1879 <file data> | |
1880 </example> | |
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1881 <list type="tag"> |
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1882 |
2507 | 1883 <tag-name id="fs_accesssync"><literal>accessSync(<value>path</value>[, |
1884 <value>mode</value>])</literal></tag-name> | |
1885 <tag-desc> | |
1886 Synchronously tests permissions for a file or directory | |
1887 specified in the <literal>path</literal> | |
1888 (<link doc="changes.xml" id="njs0.3.9">0.3.9</link>). | |
1889 If the check fails, an error will be returned, | |
1890 otherwise, the method will return undefined. | |
1891 <list type="tag"> | |
1892 | |
1893 <tag-name><literal>mode</literal></tag-name> | |
1894 <tag-desc> | |
1895 by default is <link id="access_const"><literal>fs.constants.F_OK</literal></link>. | |
1896 The mode argument is an optional integer | |
1897 that specifies the accessibility checks to be performed. | |
1898 <example> | |
1899 try { | |
1900 fs.accessSync('/file/path', fs.constants.R_OK | fs.constants.W_OK); | |
1901 console.log('has access'); | |
1902 } catch (e) { | |
1903 console.log('no access');) | |
1904 } | |
1905 </example> | |
1906 </tag-desc> | |
1907 | |
1908 </list> | |
1909 </tag-desc> | |
1910 | |
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1911 <tag-name id="fs_appendfilesync"><literal>appendFileSync(<value>filename</value>, |
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1912 <value>data</value>[, <value>options</value>])</literal></tag-name> |
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1913 <tag-desc> |
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1914 Synchronously appends specified <literal>data</literal> |
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1915 to a file with provided <literal>filename</literal>. |
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1916 The <literal>data</literal> is expected to be a string |
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1917 or a Buffer object (<link doc="changes.xml" id="njs0.4.4">0.4.4</link>). |
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1918 If the file does not exist, it will be created. |
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1919 The <literal>options</literal> parameter is expected to be |
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1920 an object with the following keys: |
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1921 <list type="tag"> |
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1922 |
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1923 <tag-name><literal>mode</literal></tag-name> |
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1924 <tag-desc> |
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1925 mode option, by default is <literal>0o666</literal> |
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1926 </tag-desc> |
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1927 |
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1928 <tag-name><literal>flag</literal></tag-name> |
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1929 <tag-desc> |
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1930 file system <link id="njs_api_fs_flags">flag</link>, |
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1931 by default is <literal>a</literal> |
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1932 </tag-desc> |
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1933 |
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1934 </list> |
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1935 </tag-desc> |
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1936 |
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1937 <tag-name id="fs_mkdirsync"><literal>mkdirSync(<value>path</value>[, |
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1938 <value>options</value>])</literal></tag-name> |
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1939 <tag-desc> |
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1940 Synchronously creates a directory at the specified <literal>path</literal> |
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Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
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1941 (<link doc="changes.xml" id="njs0.4.2">0.4.2</link>). |
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1942 The <literal>options</literal> parameter is expected to be an |
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Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
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1943 <literal>integer</literal> that specifies |
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1944 the <link id="fs_mkdirsync_mode">mode</link>, |
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1945 or an object with the following keys: |
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1946 <list type="tag"> |
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1947 |
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1948 <tag-name id="fs_mkdirsync_mode"><literal>mode</literal></tag-name> |
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Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
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1949 <tag-desc> |
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1950 mode option, by default is <literal>0o777</literal>. |
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1951 </tag-desc> |
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1952 |
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1953 </list> |
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1954 </tag-desc> |
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1955 |
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Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
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1956 <tag-name id="fs_readdirsync"><literal>readdirSync(<value>path</value>[, |
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Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
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1957 <value>options</value>])</literal></tag-name> |
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1958 <tag-desc> |
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1959 Synchronously reads the contents of a directory |
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1960 at the specified <literal>path</literal> |
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1961 (<link doc="changes.xml" id="njs0.4.2">0.4.2</link>). |
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Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
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1962 The <literal>options</literal> parameter is expected to be |
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Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
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1963 a string that specifies <link id="fs_readdirsync_encoding">encoding</link> |
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1964 or an object with the following keys: |
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1965 <list type="tag"> |
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1966 |
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1967 <tag-name id="fs_readdirsync_encoding"><literal>encoding</literal></tag-name> |
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1968 <tag-desc> |
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1969 encoding, by default is <literal>utf8</literal>. |
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1970 The encoding can be <literal>utf8</literal> and <literal>buffer</literal> |
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1971 (<link doc="changes.xml" id="njs0.4.4">0.4.4</link>). |
2563
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1972 </tag-desc> |
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Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
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|
1973 |
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Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
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1974 <tag-name id="fs_readdirsync_withfiletypes"><literal>withFileTypes</literal></tag-name> |
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Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
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1975 <tag-desc> |
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Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
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1976 if set to <literal>true</literal>, the files array will contain |
428a8cf1911b
Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
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|
1977 <link id="fs_dirent"><literal>fs.Dirent</literal></link> objects, |
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Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
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|
1978 by default is <literal>false</literal>. |
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Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
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|
1979 </tag-desc> |
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Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
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|
1980 |
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Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
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|
1981 </list> |
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Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
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1982 </tag-desc> |
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Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
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|
1983 |
2570
44792f1ee284
Added IDs to methods in njs Reference.
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|
1984 <tag-name id="fs_readfilesync"><literal>readFileSync(<value>filename</value>[, |
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1985 <value>options</value>])</literal></tag-name> |
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1986 <tag-desc> |
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1987 Synchronously returns the contents of the file |
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Documented fileSystem methods in njs.
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1988 with provided <literal>filename</literal>. |
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1989 The <literal>options</literal> parameter holds |
001f2d905fd9
Documented fileSystem methods in njs.
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|
1990 <literal>string</literal> that specifies encoding. |
2604
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1991 If an encoding is specified, a string is returned, |
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Added Buffer object info to some njs methods.
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1992 otherwise, a Buffer object |
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|
1993 (<link doc="changes.xml" id="njs0.4.4">0.4.4</link>) is returned. |
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|
1994 <note> |
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|
1995 Before version <link doc="changes.xml" id="njs0.4.4">0.4.4</link>, |
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Added Buffer object info to some njs methods.
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|
1996 a <link id="string_tobytes">byte string</link> was returned |
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Added Buffer object info to some njs methods.
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|
1997 if encoding was not specified. |
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|
1998 </note> |
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1999 Otherwise, <literal>options</literal> is expected to be |
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|
2000 an object with the following keys: |
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Documented fileSystem methods in njs.
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|
2001 <list type="tag"> |
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|
2002 |
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|
2003 <tag-name><literal>encoding</literal></tag-name> |
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Documented fileSystem methods in njs.
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2004 <tag-desc> |
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|
2005 encoding, by default is not specified. |
2604
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|
2006 The encoding can be <literal>utf8</literal>, |
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Added Buffer object info to some njs methods.
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|
2007 <literal>hex</literal> |
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|
2008 (<link doc="changes.xml" id="njs0.4.4">0.4.4</link>), |
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Added Buffer object info to some njs methods.
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|
2009 <literal>base64</literal> |
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|
2010 (<link doc="changes.xml" id="njs0.4.4">0.4.4</link>), |
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Added Buffer object info to some njs methods.
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|
2011 <literal>base64url</literal> |
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Added Buffer object info to some njs methods.
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|
2012 (<link doc="changes.xml" id="njs0.4.4">0.4.4</link>). |
2204
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|
2013 </tag-desc> |
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|
2014 |
001f2d905fd9
Documented fileSystem methods in njs.
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|
2015 <tag-name><literal>flag</literal></tag-name> |
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|
2016 <tag-desc> |
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|
2017 file system <link id="njs_api_fs_flags">flag</link>, |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
2018 by default is <literal>r</literal> |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
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diff
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|
2019 </tag-desc> |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
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diff
changeset
|
2020 |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
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diff
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|
2021 </list> |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
2022 <example> |
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Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
2023 >> var fs = require('fs') |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
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diff
changeset
|
2024 undefined |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
2025 >> var file = fs.readFileSync('/file/path.tar.gz') |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2203
diff
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|
2026 undefined |
2604
a29676472a11
Added Buffer object info to some njs methods.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2601
diff
changeset
|
2027 >> var gzipped = file.slice(0,2).toString('hex') === '1f8b'; gzipped |
2204
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
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diff
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|
2028 true |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
2029 </example> |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
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diff
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|
2030 </tag-desc> |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2203
diff
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|
2031 |
2507 | 2032 <tag-name id="fs_realpathsync"><literal>realpathSync(<value>path</value>[, |
2033 <value>options</value>])</literal></tag-name> | |
2034 <tag-desc> | |
2035 Synchronously computes the canonical pathname by resolving | |
2036 <literal>.</literal>, <literal>..</literal> and symbolic links using | |
2508
d3d5b67a1462
Language fixes in njs file system methods.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2507
diff
changeset
|
2037 <link url="http://man7.org/linux/man-pages/man3/realpath.3.html">realpath(3)</link>. |
2507 | 2038 The <literal>options</literal> argument can be a string specifying an encoding, |
2039 or an object with an encoding property specifying the character encoding | |
2040 to use for the path passed to the callback | |
2041 (<link doc="changes.xml" id="njs0.3.9">0.3.9</link>). | |
2042 </tag-desc> | |
2043 | |
2509
827a6d7fe108
Reordered alphabetically njs file system methods.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2508
diff
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|
2044 <tag-name id="fs_renamesync"><literal>renameSync(<value>oldPath</value>, |
827a6d7fe108
Reordered alphabetically njs file system methods.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2508
diff
changeset
|
2045 <value>newPath</value>)</literal></tag-name> |
827a6d7fe108
Reordered alphabetically njs file system methods.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
2046 <tag-desc> |
827a6d7fe108
Reordered alphabetically njs file system methods.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2508
diff
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|
2047 Synchronously changes the name or location of a file from |
827a6d7fe108
Reordered alphabetically njs file system methods.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2508
diff
changeset
|
2048 <literal>oldPath</literal> to <literal>newPath</literal> |
827a6d7fe108
Reordered alphabetically njs file system methods.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
2049 (<link doc="changes.xml" id="njs0.3.4">0.3.4</link>). |
827a6d7fe108
Reordered alphabetically njs file system methods.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2508
diff
changeset
|
2050 <example> |
827a6d7fe108
Reordered alphabetically njs file system methods.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
2051 >> var fs = require('fs') |
827a6d7fe108
Reordered alphabetically njs file system methods.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2508
diff
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|
2052 undefined |
827a6d7fe108
Reordered alphabetically njs file system methods.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
2053 >> var file = fs.renameSync('hello.txt', 'HelloWorld.txt') |
827a6d7fe108
Reordered alphabetically njs file system methods.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2508
diff
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|
2054 undefined |
827a6d7fe108
Reordered alphabetically njs file system methods.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
2055 </example> |
827a6d7fe108
Reordered alphabetically njs file system methods.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2508
diff
changeset
|
2056 </tag-desc> |
827a6d7fe108
Reordered alphabetically njs file system methods.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2508
diff
changeset
|
2057 |
2563
428a8cf1911b
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Yaroslav Zhuravlev <yar@nginx.com>
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2546
diff
changeset
|
2058 <tag-name id="fs_rmdirsync"><literal>rmdirSync(<value>path</value>)</literal></tag-name> |
428a8cf1911b
Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2546
diff
changeset
|
2059 <tag-desc> |
428a8cf1911b
Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2546
diff
changeset
|
2060 Synchronously removes a directory at the specified <literal>path</literal> |
428a8cf1911b
Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2546
diff
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|
2061 (<link doc="changes.xml" id="njs0.4.2">0.4.2</link>). |
428a8cf1911b
Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2546
diff
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|
2062 </tag-desc> |
428a8cf1911b
Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2546
diff
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|
2063 |
2509
827a6d7fe108
Reordered alphabetically njs file system methods.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2508
diff
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|
2064 <tag-name id="fs_symlinksync"><literal>symlinkSync(<value>target</value>, |
827a6d7fe108
Reordered alphabetically njs file system methods.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2508
diff
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|
2065 <value>path</value>)</literal></tag-name> |
827a6d7fe108
Reordered alphabetically njs file system methods.
Yaroslav Zhuravlev <yar@nginx.com>
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diff
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|
2066 <tag-desc> |
827a6d7fe108
Reordered alphabetically njs file system methods.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2508
diff
changeset
|
2067 Synchronously creates the link called <literal>path</literal> |
827a6d7fe108
Reordered alphabetically njs file system methods.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2508
diff
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|
2068 pointing to <literal>target</literal> using |
827a6d7fe108
Reordered alphabetically njs file system methods.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2508
diff
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|
2069 <link url="http://man7.org/linux/man-pages/man2/symlink.2.html">symlink(2)</link> |
827a6d7fe108
Reordered alphabetically njs file system methods.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
2070 (<link doc="changes.xml" id="njs0.3.9">0.3.9</link>). |
827a6d7fe108
Reordered alphabetically njs file system methods.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2508
diff
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|
2071 Relative targets are relative to the link’s parent directory. |
827a6d7fe108
Reordered alphabetically njs file system methods.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
2072 </tag-desc> |
827a6d7fe108
Reordered alphabetically njs file system methods.
Yaroslav Zhuravlev <yar@nginx.com>
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diff
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|
2073 |
827a6d7fe108
Reordered alphabetically njs file system methods.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2508
diff
changeset
|
2074 <tag-name id="fs_unlinksync"><literal>unlinkSync(<value>path</value>)</literal></tag-name> |
827a6d7fe108
Reordered alphabetically njs file system methods.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2508
diff
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|
2075 <tag-desc> |
827a6d7fe108
Reordered alphabetically njs file system methods.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2508
diff
changeset
|
2076 Synchronously unlinks a file by <literal>path</literal> |
827a6d7fe108
Reordered alphabetically njs file system methods.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2508
diff
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|
2077 (<link doc="changes.xml" id="njs0.3.9">0.3.9</link>). |
827a6d7fe108
Reordered alphabetically njs file system methods.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
2078 </tag-desc> |
827a6d7fe108
Reordered alphabetically njs file system methods.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2508
diff
changeset
|
2079 |
2570
44792f1ee284
Added IDs to methods in njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2569
diff
changeset
|
2080 <tag-name id="fs_writefilesync"><literal>writeFileSync(<value>filename</value>, |
2204
001f2d905fd9
Documented fileSystem methods in njs.
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2203
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|
2081 <value>data</value>[, |
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Documented fileSystem methods in njs.
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2203
diff
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|
2082 <value>options</value>])</literal></tag-name> |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
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|
2083 <tag-desc> |
001f2d905fd9
Documented fileSystem methods in njs.
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diff
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|
2084 Synchronously writes <literal>data</literal> to a file |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2203
diff
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|
2085 with provided <literal>filename</literal>. |
2604
a29676472a11
Added Buffer object info to some njs methods.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2601
diff
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|
2086 The <literal>data</literal> is expected to be a string |
a29676472a11
Added Buffer object info to some njs methods.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2601
diff
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|
2087 or a Buffer object (<link doc="changes.xml" id="njs0.4.4">0.4.4</link>). |
2204
001f2d905fd9
Documented fileSystem methods in njs.
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|
2088 If the file does not exist, it will be created, |
001f2d905fd9
Documented fileSystem methods in njs.
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parents:
2203
diff
changeset
|
2089 if the file exists, it will be replaced. |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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|
2090 The <literal>options</literal> parameter is expected to be |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
2091 an object with the following keys: |
001f2d905fd9
Documented fileSystem methods in njs.
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parents:
2203
diff
changeset
|
2092 <list type="tag"> |
001f2d905fd9
Documented fileSystem methods in njs.
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diff
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|
2093 <tag-name><literal>mode</literal></tag-name> |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2203
diff
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|
2094 <tag-desc> |
001f2d905fd9
Documented fileSystem methods in njs.
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|
2095 mode option, by default is <literal>0o666</literal> |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
2096 </tag-desc> |
001f2d905fd9
Documented fileSystem methods in njs.
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diff
changeset
|
2097 |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
2098 <tag-name><literal>flag</literal></tag-name> |
001f2d905fd9
Documented fileSystem methods in njs.
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|
2099 <tag-desc> |
001f2d905fd9
Documented fileSystem methods in njs.
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diff
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|
2100 file system <link id="njs_api_fs_flags">flag</link>, |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2203
diff
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|
2101 by default is <literal>w</literal> |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
2102 </tag-desc> |
001f2d905fd9
Documented fileSystem methods in njs.
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diff
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|
2103 |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
2104 </list> |
001f2d905fd9
Documented fileSystem methods in njs.
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parents:
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|
2105 <example> |
001f2d905fd9
Documented fileSystem methods in njs.
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|
2106 >> var fs = require('fs') |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
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|
2107 undefined |
001f2d905fd9
Documented fileSystem methods in njs.
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parents:
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|
2108 >> var file = fs.writeFileSync('hello.txt', 'Hello world') |
001f2d905fd9
Documented fileSystem methods in njs.
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|
2109 undefined |
001f2d905fd9
Documented fileSystem methods in njs.
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diff
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|
2110 </example> |
001f2d905fd9
Documented fileSystem methods in njs.
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|
2111 </tag-desc> |
001f2d905fd9
Documented fileSystem methods in njs.
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diff
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|
2112 |
001f2d905fd9
Documented fileSystem methods in njs.
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|
2113 </list> |
001f2d905fd9
Documented fileSystem methods in njs.
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|
2114 </para> |
001f2d905fd9
Documented fileSystem methods in njs.
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|
2115 |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
2116 |
2563
428a8cf1911b
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2546
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|
2117 <section id="fs_dirent" name="fs.Dirent"> |
428a8cf1911b
Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
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parents:
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diff
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|
2118 |
428a8cf1911b
Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
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diff
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|
2119 <para> |
428a8cf1911b
Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
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diff
changeset
|
2120 <literal>fs.Dirent</literal> is a representation of a directory entry— |
428a8cf1911b
Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
Yaroslav Zhuravlev <yar@nginx.com>
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diff
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|
2121 a file or a subdirectory. |
428a8cf1911b
Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
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|
2122 When |
428a8cf1911b
Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
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diff
changeset
|
2123 <link id="fs_readdirsync"><literal>readdirSync()</literal></link> |
428a8cf1911b
Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
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parents:
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|
2124 is called with the |
428a8cf1911b
Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
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diff
changeset
|
2125 <link id="fs_readdirsync_withfiletypes"><literal>withFileTypes</literal></link> |
428a8cf1911b
Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
Yaroslav Zhuravlev <yar@nginx.com>
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|
2126 option, |
428a8cf1911b
Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
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|
2127 the resulting array contains <literal>fs.Dirent</literal> objects. |
428a8cf1911b
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parents:
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|
2128 |
428a8cf1911b
Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
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diff
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|
2129 <list type= "bullet" compact="no"> |
428a8cf1911b
Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
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parents:
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|
2130 |
428a8cf1911b
Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
2131 <listitem> |
428a8cf1911b
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diff
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|
2132 <literal>dirent.isBlockDevice()</literal>—returns |
428a8cf1911b
Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
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diff
changeset
|
2133 <literal>true</literal> if the <literal>fs.Dirent</literal> object describes |
428a8cf1911b
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parents:
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diff
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|
2134 a block device. |
428a8cf1911b
Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
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|
2135 </listitem> |
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Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
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|
2136 |
428a8cf1911b
Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
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parents:
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diff
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|
2137 <listitem> |
428a8cf1911b
Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
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diff
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|
2138 <literal>dirent.isCharacterDevice()</literal>—returns |
428a8cf1911b
Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
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diff
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|
2139 <literal>true</literal> if the <literal>fs.Dirent</literal> object describes |
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Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
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parents:
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diff
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|
2140 a character device. |
428a8cf1911b
Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
2141 </listitem> |
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Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
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diff
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|
2142 |
428a8cf1911b
Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
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|
2143 <listitem> |
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Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
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|
2144 <literal>dirent.isDirectory()</literal>—returns |
428a8cf1911b
Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
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diff
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|
2145 <literal>true</literal> if the <literal>fs.Dirent</literal> object describes |
428a8cf1911b
Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
2146 a file system directory. |
428a8cf1911b
Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
2147 </listitem> |
428a8cf1911b
Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
2148 |
428a8cf1911b
Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
2149 <listitem> |
428a8cf1911b
Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
2150 <literal>dirent.isFIFO()</literal>—returns |
428a8cf1911b
Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
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parents:
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diff
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|
2151 <literal>true</literal> if the <literal>fs.Dirent</literal> object describes |
428a8cf1911b
Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
2152 a first-in-first-out (FIFO) pipe. |
428a8cf1911b
Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
2153 </listitem> |
428a8cf1911b
Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
2154 |
428a8cf1911b
Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
2155 <listitem> |
428a8cf1911b
Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
2156 <literal>dirent.isFile()</literal>—returns |
428a8cf1911b
Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
2157 <literal>true</literal> if the <literal>fs.Dirent</literal> object describes |
428a8cf1911b
Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
2158 a regular file. |
428a8cf1911b
Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
2159 </listitem> |
428a8cf1911b
Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
2160 |
428a8cf1911b
Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
2161 <listitem> |
428a8cf1911b
Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
2162 <literal>dirent.isSocket()</literal>—returns |
428a8cf1911b
Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
2163 <literal>true</literal> if the <literal>fs.Dirent</literal> object describes |
428a8cf1911b
Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
2164 a socket. |
428a8cf1911b
Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
2165 </listitem> |
428a8cf1911b
Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
2166 |
428a8cf1911b
Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
2167 <listitem> |
428a8cf1911b
Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
2168 <literal>dirent.isSymbolicLink()</literal>—returns |
428a8cf1911b
Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2546
diff
changeset
|
2169 <literal>true</literal> if the <literal>fs.Dirent</literal> object describes |
428a8cf1911b
Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2546
diff
changeset
|
2170 a symbolic link. |
428a8cf1911b
Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
2171 </listitem> |
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Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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|
2172 |
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Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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|
2173 <listitem> |
428a8cf1911b
Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
2174 <literal>dirent.name</literal>— |
428a8cf1911b
Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
2175 the name of the file <literal>fs.Dirent</literal> object refers to. |
428a8cf1911b
Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
2176 </listitem> |
428a8cf1911b
Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
2177 |
428a8cf1911b
Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
2178 </list> |
428a8cf1911b
Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
2179 </para> |
428a8cf1911b
Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
2180 |
428a8cf1911b
Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
2181 </section> |
428a8cf1911b
Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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|
2182 |
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Documented mkdirSync, readdirSync, rmdirSync, fs.Dirent in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
2183 |
2507 | 2184 <section id="access_const" name="File Access Constants"> |
2185 | |
2186 <para> | |
2187 The <link id="fs_accesssync"><literal>access()</literal></link> method | |
2188 can accept the following flags. | |
2189 These flags are exported by <literal>fs.constants</literal>: | |
2190 | |
2191 <list type= "bullet" compact="no"> | |
2192 | |
2193 <listitem> | |
2194 <literal>F_OK</literal>—indicates that the file | |
2195 is visible to the calling process, | |
2196 used by default if no mode is specified | |
2197 </listitem> | |
2198 | |
2199 <listitem> | |
2200 <literal>R_OK</literal>—indicates that the file can be | |
2201 read by the calling process | |
2202 </listitem> | |
2203 | |
2204 <listitem> | |
2205 <literal>W_OK</literal>—indicates that the file can be | |
2206 written by the calling process | |
2207 </listitem> | |
2208 | |
2209 <listitem> | |
2210 <literal>X_OK</literal>—indicates that the file can be | |
2211 executed by the calling process | |
2212 </listitem> | |
2213 | |
2214 </list> | |
2215 </para> | |
2216 | |
2217 </section> | |
2218 | |
2219 | |
2204
001f2d905fd9
Documented fileSystem methods in njs.
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|
2220 <section id="njs_api_fs_flags" name="File System Flags"> |
001f2d905fd9
Documented fileSystem methods in njs.
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|
2221 |
001f2d905fd9
Documented fileSystem methods in njs.
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|
2222 <para> |
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Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
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|
2223 The <literal>flag</literal> option can accept the following values: |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
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diff
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|
2224 |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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|
2225 <list type= "bullet" compact="no"> |
001f2d905fd9
Documented fileSystem methods in njs.
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|
2226 |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
2227 <listitem> |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2203
diff
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|
2228 <literal>a</literal>—open a file for appending. |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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|
2229 The file is created if it does not exist |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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|
2230 </listitem> |
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Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
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diff
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|
2231 |
001f2d905fd9
Documented fileSystem methods in njs.
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parents:
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changeset
|
2232 <listitem> |
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Documented fileSystem methods in njs.
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parents:
2203
diff
changeset
|
2233 <literal>ax</literal>—the same as <literal>a</literal> |
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Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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|
2234 but fails if the file already exists |
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Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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|
2235 </listitem> |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
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|
2236 |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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|
2237 <listitem> |
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Documented fileSystem methods in njs.
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parents:
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|
2238 <literal>a+</literal>—open a file for reading and appending. |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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|
2239 If the file does not exist, it will be created |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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|
2240 </listitem> |
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Documented fileSystem methods in njs.
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|
2241 |
001f2d905fd9
Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
2242 <listitem> |
2579
63cef7604e0d
Minor review of njs Reference for typos and style.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2578
diff
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|
2243 <literal>ax+</literal>—the same as <literal>a+</literal> |
2204
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Yaroslav Zhuravlev <yar@nginx.com>
parents:
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|
2244 but fails if the file already exists |
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Documented fileSystem methods in njs.
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|
2245 </listitem> |
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|
2246 |
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|
2247 <listitem> |
2579
63cef7604e0d
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parents:
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|
2248 <literal>as</literal>—open a file for appending |
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|
2249 in synchronous mode. |
2204
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|
2250 If the file does not exist, it will be created |
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|
2251 </listitem> |
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|
2252 |
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|
2253 <listitem> |
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|
2254 <literal>as+</literal>—open a file for reading and appending |
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|
2255 in synchronous mode. |
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|
2256 If the file does not exist, it will be created |
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|
2257 </listitem> |
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|
2258 |
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|
2259 <listitem> |
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|
2260 <literal>r</literal>—open a file for reading. |
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|
2261 An exception occurs if the file does not exist |
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|
2262 </listitem> |
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|
2263 |
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|
2264 <listitem> |
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|
2265 <literal>r+</literal>—open a file for reading and writing. |
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|
2266 An exception occurs if the file does not exist |
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|
2267 </listitem> |
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|
2268 |
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|
2269 <listitem> |
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|
2270 <literal>rs+</literal>—open a file for reading and writing |
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|
2271 in synchronous mode. |
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|
2272 Instructs the operating system to bypass the local file system cache |
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|
2273 </listitem> |
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Yaroslav Zhuravlev <yar@nginx.com>
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|
2274 |
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Yaroslav Zhuravlev <yar@nginx.com>
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|
2275 <listitem> |
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diff
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|
2276 <literal>w</literal>—open a file for writing. |
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|
2277 If the file does not exist, it will be created. |
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|
2278 If the file exists, it will be replaced |
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Yaroslav Zhuravlev <yar@nginx.com>
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|
2279 </listitem> |
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Yaroslav Zhuravlev <yar@nginx.com>
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diff
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|
2280 |
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Yaroslav Zhuravlev <yar@nginx.com>
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diff
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|
2281 <listitem> |
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Yaroslav Zhuravlev <yar@nginx.com>
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diff
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|
2282 <literal>wx</literal>—the same as <literal>w</literal> |
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Yaroslav Zhuravlev <yar@nginx.com>
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|
2283 but fails if the file already exists |
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Yaroslav Zhuravlev <yar@nginx.com>
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diff
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|
2284 </listitem> |
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Yaroslav Zhuravlev <yar@nginx.com>
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diff
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|
2285 |
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Yaroslav Zhuravlev <yar@nginx.com>
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diff
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|
2286 <listitem> |
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Yaroslav Zhuravlev <yar@nginx.com>
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diff
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|
2287 <literal>w+</literal>—open a file for reading and writing. |
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Yaroslav Zhuravlev <yar@nginx.com>
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diff
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|
2288 If the file does not exist, it will be created. |
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Yaroslav Zhuravlev <yar@nginx.com>
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|
2289 If the file exists, it will be replaced |
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Yaroslav Zhuravlev <yar@nginx.com>
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|
2290 </listitem> |
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Yaroslav Zhuravlev <yar@nginx.com>
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diff
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|
2291 |
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Yaroslav Zhuravlev <yar@nginx.com>
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diff
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|
2292 <listitem> |
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Yaroslav Zhuravlev <yar@nginx.com>
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|
2293 <literal>wx+</literal>—the same as <literal>w+</literal> |
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Yaroslav Zhuravlev <yar@nginx.com>
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2294 but fails if the file already exists |
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Yaroslav Zhuravlev <yar@nginx.com>
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|
2295 </listitem> |
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Yaroslav Zhuravlev <yar@nginx.com>
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diff
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|
2296 |
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|
2297 </list> |
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|
2298 </para> |
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|
2299 |
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Yaroslav Zhuravlev <yar@nginx.com>
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|
2300 </section> |
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|
2301 |
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|
2302 </section> |
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|
2303 |
2583
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Yaroslav Zhuravlev <yar@nginx.com>
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diff
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|
2304 |
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Yaroslav Zhuravlev <yar@nginx.com>
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|
2305 <section id="querystring" name="Query String"> |
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Yaroslav Zhuravlev <yar@nginx.com>
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diff
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|
2306 |
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diff
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|
2307 <para> |
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Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
2308 The Query String module provides support |
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Yaroslav Zhuravlev <yar@nginx.com>
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diff
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|
2309 for parsing and formatting URL query strings |
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Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
2310 (<link doc="changes.xml" id="njs0.4.3">0.4.3</link>). |
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Yaroslav Zhuravlev <yar@nginx.com>
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diff
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|
2311 The Query String module object is returned by |
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Yaroslav Zhuravlev <yar@nginx.com>
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diff
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|
2312 <literal>require('querystring')</literal>. |
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diff
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|
2313 </para> |
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Yaroslav Zhuravlev <yar@nginx.com>
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diff
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|
2314 |
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diff
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|
2315 <para> |
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Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
2316 <list type="tag"> |
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Yaroslav Zhuravlev <yar@nginx.com>
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diff
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|
2317 |
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Yaroslav Zhuravlev <yar@nginx.com>
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diff
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|
2318 <tag-name id="querystring_decode"><literal>querystring.decode()</literal></tag-name> |
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Yaroslav Zhuravlev <yar@nginx.com>
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diff
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|
2319 <tag-desc> |
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diff
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|
2320 is an alias for |
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Documented Query String in njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
2321 <link id="querystring_parse"><literal>querystring.parse()</literal></link>. |
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Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
2322 </tag-desc> |
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|
2323 |
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|
2324 <tag-name id="querystring_encode"><literal>querystring.encode()</literal></tag-name> |
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Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
2325 <tag-desc> |
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Yaroslav Zhuravlev <yar@nginx.com>
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|
2326 is an alias for |
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Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
2327 <link id="querystring_stringify"><literal>querystring.stringify()</literal></link>. |
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parents:
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diff
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|
2328 </tag-desc> |
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|
2329 |
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diff
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|
2330 <tag-name id="querystring_escape"><literal>querystring.escape(<value>string</value>)</literal></tag-name> |
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diff
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|
2331 <tag-desc> |
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|
2332 <para> |
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parents:
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diff
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|
2333 Performs URL encoding of the given <literal>string</literal>, |
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Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
2334 returns an escaped query string. |
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parents:
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diff
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|
2335 The method is used by |
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diff
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|
2336 <link id="querystring_stringify"><literal>querystring.stringify()</literal></link> |
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|
2337 and should not be used directly. |
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diff
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|
2338 </para> |
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diff
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|
2339 </tag-desc> |
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|
2340 |
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|
2341 <tag-name id="querystring_parse"><literal>querystring.parse(<value>string</value>[, |
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parents:
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diff
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|
2342 <value>separator</value>[, |
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parents:
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diff
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|
2343 <value>equal</value>[, |
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diff
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|
2344 <value>options</value>]]])</literal></tag-name> |
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|
2345 <tag-desc> |
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|
2346 <para> |
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|
2347 Parses the query string URL and returns an object. |
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|
2348 </para> |
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|
2349 |
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|
2350 <para> |
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|
2351 The <literal>separator</literal> parameter is a substring |
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parents:
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diff
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|
2352 for delimiting key and value pairs in the query string, |
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parents:
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|
2353 by default is “<literal>&</literal>”. |
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|
2354 </para> |
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|
2355 |
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|
2356 <para> |
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|
2357 The <literal>equal</literal> parameter is a substring |
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parents:
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|
2358 for delimiting keys and values in the query string, |
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parents:
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|
2359 by default is “<literal>=</literal>”. |
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|
2360 </para> |
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|
2361 |
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|
2362 <para> |
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|
2363 The <literal>options</literal> parameter is expected to be |
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|
2364 an object with the following keys: |
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|
2365 <list type="tag"> |
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|
2366 <tag-name><literal>decodeURIComponent</literal> |
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|
2367 <value>function</value></tag-name> |
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2368 <tag-desc> |
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|
2369 Function used |
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|
2370 to decode percent-encoded characters in the query string, |
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|
2371 by default is |
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|
2372 <link id="querystring_unescape"><literal>querystring.unescape()</literal></link> |
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|
2373 </tag-desc> |
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|
2374 |
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|
2375 <tag-name><literal>maxKeys</literal> |
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|
2376 <value>number</value></tag-name> |
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|
2377 <tag-desc> |
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|
2378 the maximum number of keys to parse, |
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|
2379 by default is <literal>1000</literal>. |
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|
2380 The <literal>0</literal> value removes limitations for counting keys. |
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|
2381 </tag-desc> |
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|
2382 |
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|
2383 </list> |
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|
2384 By default, percent-encoded characters within the query string are assumed |
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|
2385 to use the UTF-8 encoding, |
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|
2386 invalid UTF-8 sequences will be replaced with |
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|
2387 the <literal>U+FFFD</literal> replacement character. |
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|
2388 </para> |
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|
2389 |
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|
2390 <para> |
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|
2391 For example, for the following query string |
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|
2392 <example> |
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|
2393 'foo=bar&abc=xyz&abc=123' |
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|
2394 </example> |
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Yaroslav Zhuravlev <yar@nginx.com>
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2395 the output will be: |
cd97adddd757
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Yaroslav Zhuravlev <yar@nginx.com>
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|
2396 <example> |
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Yaroslav Zhuravlev <yar@nginx.com>
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2397 { |
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Documented Query String in njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
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2398 foo: 'bar', |
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Yaroslav Zhuravlev <yar@nginx.com>
parents:
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2399 abc: ['xyz', '123'] |
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Yaroslav Zhuravlev <yar@nginx.com>
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2400 } |
cd97adddd757
Documented Query String in njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
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diff
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|
2401 </example> |
cd97adddd757
Documented Query String in njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
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diff
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|
2402 </para> |
cd97adddd757
Documented Query String in njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
2403 |
cd97adddd757
Documented Query String in njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
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diff
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|
2404 </tag-desc> |
cd97adddd757
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Yaroslav Zhuravlev <yar@nginx.com>
parents:
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|
2405 |
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|
2406 <tag-name id="querystring_stringify"><literal>querystring.stringify(<value>object</value>[, |
cd97adddd757
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Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
2407 <value>separator</value>[, |
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Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
2408 <value>equal</value>[, |
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Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
2409 <value>options</value>]]])</literal></tag-name> |
cd97adddd757
Documented Query String in njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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|
2410 <tag-desc> |
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Documented Query String in njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
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diff
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|
2411 <para> |
cd97adddd757
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Yaroslav Zhuravlev <yar@nginx.com>
parents:
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|
2412 Serializes an object and returns a URL query string. |
cd97adddd757
Documented Query String in njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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|
2413 </para> |
cd97adddd757
Documented Query String in njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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|
2414 |
cd97adddd757
Documented Query String in njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
2415 <para> |
cd97adddd757
Documented Query String in njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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|
2416 The <literal>separator</literal> parameter is a substring |
cd97adddd757
Documented Query String in njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
2417 for delimiting key and value pairs in the query string, |
cd97adddd757
Documented Query String in njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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|
2418 by default is “<literal>&</literal>”. |
cd97adddd757
Documented Query String in njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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|
2419 </para> |
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Yaroslav Zhuravlev <yar@nginx.com>
parents:
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|
2420 |
cd97adddd757
Documented Query String in njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
2421 <para> |
cd97adddd757
Documented Query String in njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
2422 The <literal>equal</literal> parameter is a substring |
cd97adddd757
Documented Query String in njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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|
2423 for delimiting keys and values in the query string, |
cd97adddd757
Documented Query String in njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
2424 by default is “<literal>=</literal>”. |
cd97adddd757
Documented Query String in njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
2425 </para> |
cd97adddd757
Documented Query String in njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
2426 |
cd97adddd757
Documented Query String in njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
2427 <para> |
cd97adddd757
Documented Query String in njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
2428 The <literal>options</literal> parameter is expected to be |
cd97adddd757
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Yaroslav Zhuravlev <yar@nginx.com>
parents:
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2429 an object with the following keys: |
cd97adddd757
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Yaroslav Zhuravlev <yar@nginx.com>
parents:
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|
2430 <list type="tag"> |
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parents:
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|
2431 <tag-name><literal>encodeURIComponent</literal> |
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Documented Query String in njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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|
2432 <value>function</value></tag-name> |
cd97adddd757
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Yaroslav Zhuravlev <yar@nginx.com>
parents:
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|
2433 <tag-desc> |
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Yaroslav Zhuravlev <yar@nginx.com>
parents:
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|
2434 The function to use when converting |
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Yaroslav Zhuravlev <yar@nginx.com>
parents:
2582
diff
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|
2435 URL-unsafe characters to percent-encoding in the query string, |
cd97adddd757
Documented Query String in njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
2436 by default is |
cd97adddd757
Documented Query String in njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2582
diff
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|
2437 <link id="querystring_escape"><literal>querystring.escape()</literal></link>. |
cd97adddd757
Documented Query String in njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
2438 </tag-desc> |
cd97adddd757
Documented Query String in njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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|
2439 |
cd97adddd757
Documented Query String in njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
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diff
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|
2440 </list> |
cd97adddd757
Documented Query String in njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
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diff
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|
2441 </para> |
cd97adddd757
Documented Query String in njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
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diff
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|
2442 |
cd97adddd757
Documented Query String in njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
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diff
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|
2443 <para> |
cd97adddd757
Documented Query String in njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
2444 By default, characters that require percent-encoding within the query string |
cd97adddd757
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Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
2445 are encoded as UTF-8. |
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parents:
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|
2446 If other encoding is required, then |
cd97adddd757
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Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
2447 <literal>encodeURIComponent</literal> option should be specified. |
cd97adddd757
Documented Query String in njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
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|
2448 </para> |
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Yaroslav Zhuravlev <yar@nginx.com>
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|
2449 |
cd97adddd757
Documented Query String in njs Reference.
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|
2450 <para> |
cd97adddd757
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|
2451 For example, for the following command |
cd97adddd757
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|
2452 <example> |
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|
2453 querystring.stringify({ foo: 'bar', baz: ['qux', 'quux'], 123: '' }); |
cd97adddd757
Documented Query String in njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
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|
2454 </example> |
cd97adddd757
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Yaroslav Zhuravlev <yar@nginx.com>
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|
2455 the query string will be: |
cd97adddd757
Documented Query String in njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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|
2456 <example> |
cd97adddd757
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|
2457 'foo=bar&baz=qux&baz=quux&123=' |
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2458 </example> |
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|
2459 </para> |
cd97adddd757
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|
2460 |
cd97adddd757
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|
2461 </tag-desc> |
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|
2462 |
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2463 <tag-name id="querystring_unescape"><literal>querystring.unescape(<value>string</value>)</literal></tag-name> |
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2464 <tag-desc> |
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|
2465 <para> |
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|
2466 Performs decoding of URL percent-encoded characters |
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|
2467 of the <literal>string</literal>, |
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2468 returns an unescaped query string. |
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|
2469 The method is used by |
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|
2470 <link id="querystring_parse"><literal>querystring.parse()</literal></link> |
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Yaroslav Zhuravlev <yar@nginx.com>
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|
2471 and should not be used directly. |
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Documented Query String in njs Reference.
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|
2472 </para> |
cd97adddd757
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Yaroslav Zhuravlev <yar@nginx.com>
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|
2473 </tag-desc> |
cd97adddd757
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Yaroslav Zhuravlev <yar@nginx.com>
parents:
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|
2474 |
cd97adddd757
Documented Query String in njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
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|
2475 </list> |
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Documented Query String in njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
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|
2476 </para> |
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Documented Query String in njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
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|
2477 |
cd97adddd757
Documented Query String in njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
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|
2478 </section> |
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Yaroslav Zhuravlev <yar@nginx.com>
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|
2479 |
2176 | 2480 </section> |
2481 | |
2175
cd4889fdcfa4
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2482 </article> |