Mercurial > hg > nginx-site
annotate xml/en/docs/njs/reference.xml @ 2501:2b494b8ff72d
Documented the "Entry exists" error in the API.
author | Yaroslav Zhuravlev <yar@nginx.com> |
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date | Wed, 12 Feb 2020 15:10:47 +0000 |
parents | 805c4b84cc61 |
children | 8ad2ea80e0c2 |
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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="35"> |
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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 </section> |
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22 |
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23 |
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24 <section id="http_stream" name="nginx objects"> |
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25 |
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26 |
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27 <section id="http" name="HTTP Request"> |
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28 |
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29 <para> |
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30 The HTTP request object is available only in the |
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31 <link doc="../http/ngx_http_js_module.xml">ngx_http_js_module</link> module. |
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32 All string properties of the object are <link id="string">byte strings</link>. |
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33 |
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34 <list type="tag"> |
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35 |
2353 | 36 <tag-name id="r_args"><literal>r.args{}</literal></tag-name> |
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37 <tag-desc> |
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38 request arguments object, read-only |
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39 </tag-desc> |
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40 |
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41 <tag-name><literal>r.error(<value>string</value>)</literal></tag-name> |
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42 <tag-desc> |
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43 writes a <literal>string</literal> to the error log |
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44 on the <literal>error</literal> level of logging |
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45 </tag-desc> |
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46 |
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47 <tag-name><literal>r.finish()</literal></tag-name> |
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48 <tag-desc> |
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49 finishes sending a response to the client |
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50 </tag-desc> |
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51 |
2353 | 52 <tag-name id="r_headers_in"><literal>r.headersIn{}</literal></tag-name> |
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53 <tag-desc> |
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54 incoming headers object, read-only. |
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55 <para> |
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56 For example, the <literal>Foo</literal> header |
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57 can be accessed with the syntax <literal>headersIn.foo</literal> |
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58 or <literal>headersIn['Foo']</literal> |
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59 <note> |
2446 | 60 Before version <link doc="changes.xml" id="njs0.3.6">0.3.6</link>, |
61 for headers that could appear multiple times such as | |
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62 <header>Cookie</header> or <header>X-Forwarded-For</header>, |
2446 | 63 only the first value was returned. |
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64 To get all cookies, |
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65 <literal>r.variables.http_cookie</literal> |
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66 should be used. |
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67 To get the <literal>name</literal> cookie, |
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68 <literal>r.variables["cookie_<value>name</value>"]</literal> |
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69 should be used. |
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70 </note> |
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71 </para> |
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72 </tag-desc> |
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73 |
2331 | 74 <tag-name id="r_headers_out"><literal>r.headersOut{}</literal></tag-name> |
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75 <tag-desc> |
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76 outgoing headers object, writable. |
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77 <para> |
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78 For example, the <literal>Foo</literal> header |
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79 can be accessed with the syntax <literal>headersOut.foo</literal> |
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80 or <literal>headersOut['Foo']</literal> |
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81 </para> |
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82 </tag-desc> |
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83 |
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84 <tag-name><literal>r.httpVersion</literal></tag-name> |
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85 <tag-desc> |
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86 HTTP version, read-only |
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87 </tag-desc> |
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88 |
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89 <tag-name><literal>r.log(<value>string</value>)</literal></tag-name> |
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90 <tag-desc> |
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91 writes a <literal>string</literal> to the error log |
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92 on the <literal>info</literal> level of logging |
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93 </tag-desc> |
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94 |
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95 <tag-name id="r_internal_redirect"><literal>r.internalRedirect(<value>uri</value>)</literal></tag-name> |
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96 <tag-desc> |
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97 performs an internal redirect to the specified <literal>uri</literal>. |
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98 If the uri starts with the “<literal>@</literal>” prefix, |
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99 it is considered a named location. |
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100 </tag-desc> |
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101 |
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102 <tag-name><literal>r.method</literal></tag-name> |
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103 <tag-desc> |
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104 HTTP method, read-only |
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105 </tag-desc> |
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106 |
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107 <tag-name id="r_parent"><literal>r.parent</literal></tag-name> |
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108 <tag-desc> |
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109 references the parent request object |
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110 </tag-desc> |
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111 |
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112 <tag-name><literal>r.remoteAddress</literal></tag-name> |
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113 <tag-desc> |
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114 client address, read-only |
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115 </tag-desc> |
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116 |
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117 <tag-name id="r_request_body"><literal>r.requestBody</literal></tag-name> |
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118 <tag-desc> |
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119 returns the client request body if it has not been |
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120 written to a temporary file. |
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121 To ensure that the client request body is in memory, |
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122 its size should be limited by |
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123 <link doc="../http/ngx_http_core_module.xml" id="client_max_body_size"/>, |
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124 and a sufficient buffer size should be set using |
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125 <link doc="../http/ngx_http_core_module.xml" id="client_body_buffer_size"/>. |
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126 The property is available only in the |
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127 <link doc="../http/ngx_http_js_module.xml" id="js_content"/> directive. |
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128 </tag-desc> |
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129 |
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131 <tag-desc> |
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132 holds the <link id="subrequest">subrequest</link> response body, read-only. |
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133 The size of <literal>r.responseBody</literal> is limited by the |
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134 <link doc="../http/ngx_http_core_module.xml" id="subrequest_output_buffer_size"/> |
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135 directive. |
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136 </tag-desc> |
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137 |
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138 <tag-name><literal>r.return(status[, string])</literal></tag-name> |
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139 <tag-desc> |
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140 sends the entire response |
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141 with the specified <literal>status</literal> to the client |
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142 <para> |
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143 It is possible to specify either a redirect URL |
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144 (for codes 301, 302, 303, 307, and 308) |
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145 or the response body text (for other codes) as the second argument |
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146 </para> |
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147 </tag-desc> |
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148 |
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149 <tag-name><literal>r.send(<value>string</value>)</literal></tag-name> |
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150 <tag-desc> |
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151 sends a part of the response body to the client |
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152 </tag-desc> |
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153 |
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154 <tag-name><literal>r.sendHeader()</literal></tag-name> |
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155 <tag-desc> |
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156 sends the HTTP headers to the client |
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157 </tag-desc> |
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158 |
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159 <tag-name><literal>r.status</literal></tag-name> |
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160 <tag-desc> |
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161 status, writable |
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162 </tag-desc> |
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163 |
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164 <tag-name id="r_variables"><literal>r.variables{}</literal></tag-name> |
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165 <tag-desc> |
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166 nginx variables object, |
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167 writable (since <link doc="changes.xml" id="njs0.2.8">0.2.8</link>) |
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168 </tag-desc> |
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169 |
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170 <tag-name><literal>r.warn(<value>string</value>)</literal></tag-name> |
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171 <tag-desc> |
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172 writes a <literal>string</literal> to the error log |
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173 on the <literal>warning</literal> level of logging |
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174 </tag-desc> |
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175 |
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176 <tag-name id="r_uri"><literal>r.uri</literal></tag-name> |
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177 <tag-desc> |
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178 current <link doc="../http/ngx_http_core_module.xml" id="var_uri">URI</link> |
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179 in request, |
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180 <link doc="../http/ngx_http_core_module.xml" id="location">normalized</link>, |
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181 read-only |
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182 </tag-desc> |
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183 |
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184 <tag-name id="subrequest"><literal>r.subrequest(<value>uri</value>[, |
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185 <value>options</value>[, <value>callback</value>]])</literal></tag-name> |
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186 <tag-desc> |
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187 creates a subrequest with the given <literal>uri</literal> and |
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188 <literal>options</literal>, and installs |
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189 an optional completion <literal>callback</literal>. |
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190 |
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191 <para> |
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192 A |
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193 <link doc="../dev/development_guide.xml.xml" id="http_subrequests">subrequest</link> |
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194 shares its input headers with the client request. |
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195 To send headers different from original headers to a proxied server, the |
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196 <link doc="../http/ngx_http_proxy_module.xml" id="proxy_set_header"/> |
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197 directive can be used. |
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198 To send a completely new set of headers to a proxied server, the |
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199 <link doc="../http/ngx_http_proxy_module.xml" id="proxy_pass_request_headers"/> |
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200 directive can be used. |
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201 </para> |
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202 |
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203 <para> |
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204 If <literal>options</literal> is a string, then it |
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205 holds the subrequest arguments string. |
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206 Otherwise, <literal>options</literal> is expected to be |
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207 an object with the following keys: |
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208 <list type="tag"> |
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209 <tag-name><literal>args</literal></tag-name> |
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210 <tag-desc> |
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211 arguments string, by default an empty string is used |
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212 </tag-desc> |
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213 <tag-name><literal>body</literal></tag-name> |
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214 <tag-desc> |
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215 request body, |
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216 by default the request body of the parent request object is used |
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217 </tag-desc> |
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218 |
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219 <tag-name><literal>method</literal></tag-name> |
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220 <tag-desc> |
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221 HTTP method, by default the <literal>GET</literal> method is used |
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222 </tag-desc> |
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223 |
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224 </list> |
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225 </para> |
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226 |
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227 <para> |
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228 The completion <literal>callback</literal> receives |
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229 a subrequest response object with methods and properties |
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230 identical to the parent request object. |
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231 </para> |
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232 |
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233 <para> |
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234 Since <link doc="changes.xml" id="njs0.3.8">0.3.8</link>, |
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235 if a <literal>callback</literal> is not provided, |
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236 the <literal>Promise</literal> object |
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237 that resolves to the subrequest response object is returned. |
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238 </para> |
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239 </tag-desc> |
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240 |
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241 </list> |
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242 </para> |
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243 |
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244 </section> |
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245 |
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246 |
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247 <section id="stream" name="Stream Session"> |
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248 |
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249 <para> |
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250 The stream session object is available only in the |
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251 <link doc="../stream/ngx_stream_js_module.xml">ngx_stream_js_module</link> |
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252 module. |
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253 All string properties of the object are <link id="string">byte strings</link>. |
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254 </para> |
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255 |
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256 <para> |
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257 <list type="tag"> |
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258 |
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259 <tag-name id="s_allow"><literal>s.allow()</literal></tag-name> |
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260 <tag-desc> |
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261 successfully finalizes the phase handler |
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262 (<link doc="changes.xml" id="njs0.2.4">0.2.4</link>) |
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263 </tag-desc> |
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264 |
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265 <tag-name id="s_decline"><literal>s.decline()</literal></tag-name> |
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266 <tag-desc> |
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267 finalizes the phase handler and passes control to the next handler |
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268 (<link doc="changes.xml" id="njs0.2.4">0.2.4</link>) |
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269 </tag-desc> |
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270 |
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271 <tag-name id="s_deny"><literal>s.deny()</literal></tag-name> |
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272 <tag-desc> |
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273 finalizes the phase handler with the access error code |
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274 (<link doc="changes.xml" id="njs0.2.4">0.2.4</link>) |
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275 </tag-desc> |
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276 |
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277 <tag-name id="s_done"><literal>s.done</literal>(<value>[code]</value>)</tag-name> |
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278 <tag-desc> |
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279 successfully finalizes the current phase handler |
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280 or finalizes it with the specified numeric code |
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281 (<link doc="changes.xml" id="njs0.2.4">0.2.4</link>). |
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282 </tag-desc> |
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283 |
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284 <tag-name><literal>s.error(<value>string</value>)</literal></tag-name> |
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285 <tag-desc> |
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286 writes a sent <literal>string</literal> to the error log |
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287 on the <literal>error</literal> level of logging |
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288 </tag-desc> |
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289 |
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290 <tag-name><literal>s.log(<value>string</value>)</literal></tag-name> |
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291 <tag-desc> |
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292 writes a sent <value>string</value> to the error log |
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293 on the <literal>info</literal> level of logging |
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294 </tag-desc> |
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295 |
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296 <tag-name id="s_off"><literal>s.off(<value>eventName</value>)</literal></tag-name> |
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297 <tag-desc> |
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298 unregisters the callback set by the <link id="s_on">s.on()</link> method |
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299 (<link doc="changes.xml" id="njs0.2.4">0.2.4</link>) |
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300 </tag-desc> |
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301 |
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302 <tag-name id="s_on"><literal>s.on(<value>event</value>, |
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303 <value>callback</value>)</literal></tag-name> |
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304 <tag-desc> |
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305 registers a <literal>callback</literal> for the specified <literal>event</literal> |
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306 (<link doc="changes.xml" id="njs0.2.4">0.2.4</link>). |
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307 |
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308 <para> |
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309 An <literal>event</literal> may be one of the following strings: |
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310 <list type="tag"> |
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311 <tag-name><literal>upload</literal></tag-name> |
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312 <tag-desc> |
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313 new data from a client |
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314 </tag-desc> |
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315 |
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316 <tag-name><literal>download</literal></tag-name> |
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317 <tag-desc> |
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318 new data to a client |
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319 </tag-desc> |
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320 |
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321 </list> |
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322 </para> |
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323 |
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324 <para> |
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325 The completion callback has the following prototype: |
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326 <literal>callback(data, flags)</literal>, where |
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327 <literal>data</literal> is string, |
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328 <literal>flags</literal> is an object |
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329 with the following properties: |
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330 <list type="tag"> |
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331 <tag-name id="s_on_callback_last"><literal>last</literal></tag-name> |
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332 <tag-desc> |
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333 a boolean value, true if data is a last buffer. |
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334 </tag-desc> |
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335 |
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336 </list> |
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337 </para> |
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338 </tag-desc> |
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339 |
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340 <tag-name><literal>s.remoteAddress</literal></tag-name> |
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341 <tag-desc> |
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342 client address, read-only |
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343 </tag-desc> |
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344 |
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345 <tag-name id="s_send"><literal>s.send(<value>data</value>[, |
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346 <value>options</value>])</literal></tag-name> |
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347 <tag-desc> |
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348 sends the data to the client |
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349 (<link doc="changes.xml" id="njs0.2.4">0.2.4</link>). |
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350 The <literal>options</literal> is an object used |
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351 to override nginx buffer flags derived from an incoming data chunk buffer. |
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352 The flags can be overriden with the following flags: |
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353 <para> |
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354 <list type="tag"> |
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355 |
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356 <tag-name><literal>last</literal></tag-name> |
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357 <tag-desc> |
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358 boolean, true if the buffer is the last buffer |
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359 </tag-desc> |
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360 |
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361 <tag-name><literal>flush</literal></tag-name> |
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362 <tag-desc> |
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363 boolean, true if the buffer should have the <literal>flush</literal> flag |
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364 </tag-desc> |
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365 </list> |
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366 </para> |
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367 The method can be called multiple times per callback invocation. |
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368 </tag-desc> |
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369 |
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370 <tag-name id="s_variables"><literal>s.variables{}</literal></tag-name> |
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371 <tag-desc> |
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372 nginx variables object, writable |
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373 (since <link doc="changes.xml" id="njs0.2.8">0.2.8</link>) |
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374 </tag-desc> |
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375 |
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376 <tag-name><literal>s.warn(<value>string</value>)</literal></tag-name> |
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377 <tag-desc> |
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378 writes a sent <literal>string</literal> to the error log |
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379 on the <literal>warning</literal> level of logging |
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380 </tag-desc> |
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381 |
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382 </list> |
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383 </para> |
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384 |
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385 </section> |
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386 |
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387 </section> |
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388 |
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389 |
2176 | 390 <section id="core" name="Core"> |
391 | |
392 | |
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393 <section id="core_global" name="Global"> |
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394 |
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395 |
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396 <section id="process" name="Process"> |
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397 |
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398 <para> |
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399 The <literal>process</literal> object is a global object |
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400 that provides information about the current process |
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401 (<link doc="changes.xml" id="njs0.3.3">0.3.3</link>). |
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402 </para> |
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403 |
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404 |
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405 <para> |
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406 <list type="tag"> |
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407 |
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408 <tag-name id="process_argv"><literal>process.argv</literal></tag-name> |
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409 <tag-desc> |
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410 Returns an array that contains the command line arguments |
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411 passed when the current process was launched. |
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412 </tag-desc> |
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413 |
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414 <tag-name id="process_env"><literal>process.env</literal></tag-name> |
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415 <tag-desc> |
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416 Returns an object containing the user environment. |
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417 <note> |
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418 By default, nginx removes all environment variables inherited |
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419 from its parent process except the TZ variable. |
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420 Use the <link doc="../ngx_core_module.xml" id="env"/> directive |
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421 to preserve some of the inherited variables. |
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422 </note> |
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423 </tag-desc> |
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424 |
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425 <tag-name id="process_pid"><literal>process.pid</literal></tag-name> |
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426 <tag-desc> |
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427 Returns the PID of the current process. |
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428 </tag-desc> |
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429 |
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430 <tag-name id="process_ppid"><literal>process.ppid</literal></tag-name> |
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431 <tag-desc> |
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432 Returns the PID of the current parent process. |
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433 </tag-desc> |
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434 |
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435 </list> |
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436 </para> |
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437 |
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438 </section> |
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439 |
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440 </section> |
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441 |
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442 |
2312 | 443 <section id="core_object" name="Object"> |
444 | |
445 <para> | |
446 The <literal>Object</literal> constructor corresponds to a standard JS object. | |
447 <list type="tag"> | |
448 | |
449 <tag-name id="object_entries"><literal>Object.entries(<value>object</value>)</literal></tag-name> | |
450 <tag-desc> | |
451 returns an array of all enumerable property | |
452 <literal>[key, value]</literal> pairs | |
453 of the given <literal>object</literal> | |
454 (<link doc="changes.xml" id="njs0.2.7">0.2.7</link>). | |
455 </tag-desc> | |
456 | |
457 <tag-name id="object_values"><literal>Object.values(<value>object</value>)</literal></tag-name> | |
458 <tag-desc> | |
459 returns an array of all enumerable property values | |
460 of the given <literal>object</literal> | |
461 (<link doc="changes.xml" id="njs0.2.7">0.2.7</link>). | |
462 </tag-desc> | |
463 | |
464 </list> | |
465 </para> | |
466 | |
467 </section> | |
468 | |
469 | |
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470 <section id="string" name="String"> |
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471 |
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472 <para> |
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473 There are two types of strings in njs: a Unicode string (default) and |
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474 a byte string. |
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475 </para> |
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476 |
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477 <para> |
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478 A Unicode string corresponds to an ECMAScript string |
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479 which contains Unicode characters. |
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Added njs String object.
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|
480 </para> |
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changeset
|
481 |
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changeset
|
482 <para> |
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Corrected language in njs.
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changeset
|
483 Byte strings contain a sequence of bytes |
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changeset
|
484 and are used to serialize Unicode strings |
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parents:
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changeset
|
485 to external data and deserialize from external sources. |
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|
486 For example, the <link id="string_toutf8">toUTF8()</link> method serializes |
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|
487 a Unicode string to a byte string using UTF8 encoding: |
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Added njs String object.
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parents:
2183
diff
changeset
|
488 <example> |
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Added njs String object.
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changeset
|
489 >> '£'.toUTF8().toString('hex') |
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diff
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|
490 'c2a3' /* C2 A3 is the UTF8 representation of 00A3 ('£') code point */ |
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changeset
|
491 </example> |
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Added njs String object.
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changeset
|
492 The <link id="string_tobytes">toBytes()</link> method serializes |
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Added njs String object.
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parents:
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|
493 a Unicode string with code points up to 255 into a byte string, |
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|
494 otherwise, <literal>null</literal> is returned: |
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Added njs String object.
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diff
changeset
|
495 <example> |
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Added njs String object.
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parents:
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changeset
|
496 >> '£'.toBytes().toString('hex') |
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|
497 'a3' /* a3 is a byte equal to 00A3 ('£') code point */ |
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|
498 </example> |
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Added njs String object.
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changeset
|
499 Only byte strings can be converted to different encodings. |
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Added njs String object.
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|
500 For example, a string cannot be encoded to <literal>hex</literal> directly: |
8e2b3aadc3ce
Added njs String object.
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changeset
|
501 <example> |
8e2b3aadc3ce
Added njs String object.
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parents:
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changeset
|
502 >> 'αβγδ'.toString('base64') |
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Added njs String object.
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parents:
2183
diff
changeset
|
503 TypeError: argument must be a byte string |
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Added njs String object.
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parents:
2183
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changeset
|
504 at String.prototype.toString (native) |
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|
505 at main (native) |
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Added njs String object.
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changeset
|
506 </example> |
8e2b3aadc3ce
Added njs String object.
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changeset
|
507 To convert a Unicode string to hex, |
8e2b3aadc3ce
Added njs String object.
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parents:
2183
diff
changeset
|
508 first, it should be converted to a byte string and then to hex: |
8e2b3aadc3ce
Added njs String object.
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parents:
2183
diff
changeset
|
509 <example> |
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Added njs String object.
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parents:
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diff
changeset
|
510 >> 'αβγδ'.toUTF8().toString('base64') |
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Added quotes to njs examples.
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changeset
|
511 'zrHOss6zzrQ=' |
2186
8e2b3aadc3ce
Added njs String object.
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changeset
|
512 </example> |
8e2b3aadc3ce
Added njs String object.
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parents:
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diff
changeset
|
513 |
8e2b3aadc3ce
Added njs String object.
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parents:
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diff
changeset
|
514 <list type="tag"> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
515 |
2211
660229c5c92f
Documented String.bytesFrom() method in njs.
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parents:
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diff
changeset
|
516 <tag-name id="string_bytesfrom"><literal>String.bytesFrom(<value>array</value> |
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Documented String.bytesFrom() method in njs.
Yaroslav Zhuravlev <yar@nginx.com>
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|
517 | <value>string</value>, <value>encoding</value>)</literal></tag-name> |
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Documented String.bytesFrom() method in njs.
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parents:
2207
diff
changeset
|
518 <tag-desc> |
660229c5c92f
Documented String.bytesFrom() method in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2207
diff
changeset
|
519 (njs specific) Creates a byte string either from an array that contains octets, |
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ae56e4613280
Corrected language in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2313
diff
changeset
|
520 or from an encoded string |
2337
867fe207f13e
Updated links to changes.xml in njs Reference.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2332
diff
changeset
|
521 (<link doc="changes.xml" id="njs0.2.3">0.2.3</link>). |
2211
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Documented String.bytesFrom() method in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2207
diff
changeset
|
522 The encoding can be |
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Documented String.bytesFrom() method in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2207
diff
changeset
|
523 <literal>hex</literal>, |
660229c5c92f
Documented String.bytesFrom() method in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
524 <literal>base64</literal>, and |
660229c5c92f
Documented String.bytesFrom() method in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2207
diff
changeset
|
525 <literal>base64url</literal>. |
660229c5c92f
Documented String.bytesFrom() method in njs.
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parents:
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diff
changeset
|
526 <example> |
660229c5c92f
Documented String.bytesFrom() method in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2207
diff
changeset
|
527 >> String.bytesFrom([0x62, 0x75, 0x66, 0x66, 0x65, 0x72]) |
660229c5c92f
Documented String.bytesFrom() method in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2207
diff
changeset
|
528 'buffer' |
660229c5c92f
Documented String.bytesFrom() method in njs.
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parents:
2207
diff
changeset
|
529 |
660229c5c92f
Documented String.bytesFrom() method in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2207
diff
changeset
|
530 >> String.bytesFrom('YnVmZmVy', 'base64') |
660229c5c92f
Documented String.bytesFrom() method in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2207
diff
changeset
|
531 'buffer' |
660229c5c92f
Documented String.bytesFrom() method in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2207
diff
changeset
|
532 </example> |
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Documented String.bytesFrom() method in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2207
diff
changeset
|
533 </tag-desc> |
660229c5c92f
Documented String.bytesFrom() method in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2207
diff
changeset
|
534 |
2271
34a1901e663d
Described charAt, codePointAt, fromCharCode in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2268
diff
changeset
|
535 <tag-name id="string_fromcharcode"><literal>String.fromCharCode(<value>CharCode1</value>[, ...[, |
34a1901e663d
Described charAt, codePointAt, fromCharCode in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2268
diff
changeset
|
536 <value>CharCodeN</value>]])</literal></tag-name> |
34a1901e663d
Described charAt, codePointAt, fromCharCode in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2268
diff
changeset
|
537 <tag-desc> |
34a1901e663d
Described charAt, codePointAt, fromCharCode in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2268
diff
changeset
|
538 Returns a string from one or more Unicode code points. |
34a1901e663d
Described charAt, codePointAt, fromCharCode in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2268
diff
changeset
|
539 <example> |
34a1901e663d
Described charAt, codePointAt, fromCharCode in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2268
diff
changeset
|
540 >> String.fromCharCode(97, 98, 99, 100) |
34a1901e663d
Described charAt, codePointAt, fromCharCode in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2268
diff
changeset
|
541 'abcd' |
34a1901e663d
Described charAt, codePointAt, fromCharCode in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2268
diff
changeset
|
542 </example> |
34a1901e663d
Described charAt, codePointAt, fromCharCode in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2268
diff
changeset
|
543 </tag-desc> |
34a1901e663d
Described charAt, codePointAt, fromCharCode in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2268
diff
changeset
|
544 |
2267
c30048802769
Added links to njs reference from njs Compatibility.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2259
diff
changeset
|
545 <tag-name id="string_fromcodepoint"><literal>String.fromCodePoint(<value>codePoint1</value>[, ...[, |
2186
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
546 <value>codePoint2</value>]])</literal></tag-name> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
547 <tag-desc> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
548 Returns a string from one or more Unicode code points. |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
549 <example> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
550 >> String.fromCodePoint(97, 98, 99, 100) |
2214
e029f4bc7ede
Added quotes to njs examples.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2212
diff
changeset
|
551 'abcd' |
2186
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
552 </example> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
553 </tag-desc> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
554 |
2271
34a1901e663d
Described charAt, codePointAt, fromCharCode in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2268
diff
changeset
|
555 <tag-name id="string_charat"><literal>String.prototype.charAt(<value>index</value>)</literal></tag-name> |
34a1901e663d
Described charAt, codePointAt, fromCharCode in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2268
diff
changeset
|
556 <tag-desc> |
34a1901e663d
Described charAt, codePointAt, fromCharCode in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2268
diff
changeset
|
557 Returns a string representing one Unicode code unit |
34a1901e663d
Described charAt, codePointAt, fromCharCode in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2268
diff
changeset
|
558 at the specified <literal>index</literal>; |
34a1901e663d
Described charAt, codePointAt, fromCharCode in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2268
diff
changeset
|
559 empty string if index is out of range. |
2315
ae56e4613280
Corrected language in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2313
diff
changeset
|
560 The index can be an integer |
2271
34a1901e663d
Described charAt, codePointAt, fromCharCode in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2268
diff
changeset
|
561 between 0 and 1-less-than the length of the string. |
34a1901e663d
Described charAt, codePointAt, fromCharCode in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2268
diff
changeset
|
562 If no index is provided, the default is <literal>0</literal>, |
34a1901e663d
Described charAt, codePointAt, fromCharCode in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2268
diff
changeset
|
563 so the first character in the string is returned. |
34a1901e663d
Described charAt, codePointAt, fromCharCode in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2268
diff
changeset
|
564 </tag-desc> |
34a1901e663d
Described charAt, codePointAt, fromCharCode in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2268
diff
changeset
|
565 |
34a1901e663d
Described charAt, codePointAt, fromCharCode in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2268
diff
changeset
|
566 <tag-name id="string_codepointat"><literal>String.prototype.CodePointAt(<value>position</value>)</literal></tag-name> |
34a1901e663d
Described charAt, codePointAt, fromCharCode in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2268
diff
changeset
|
567 <tag-desc> |
34a1901e663d
Described charAt, codePointAt, fromCharCode in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2268
diff
changeset
|
568 Returns a number representing the code point value of the character |
2315
ae56e4613280
Corrected language in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2313
diff
changeset
|
569 at the given <literal>position</literal>; |
2271
34a1901e663d
Described charAt, codePointAt, fromCharCode in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2268
diff
changeset
|
570 <literal>undefined</literal> if there is no element at position. |
34a1901e663d
Described charAt, codePointAt, fromCharCode in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2268
diff
changeset
|
571 <example> |
34a1901e663d
Described charAt, codePointAt, fromCharCode in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2268
diff
changeset
|
572 >> 'ABCD'.codePointAt(3); |
34a1901e663d
Described charAt, codePointAt, fromCharCode in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2268
diff
changeset
|
573 68 |
34a1901e663d
Described charAt, codePointAt, fromCharCode in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2268
diff
changeset
|
574 </example> |
34a1901e663d
Described charAt, codePointAt, fromCharCode in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2268
diff
changeset
|
575 </tag-desc> |
34a1901e663d
Described charAt, codePointAt, fromCharCode in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2268
diff
changeset
|
576 |
2267
c30048802769
Added links to njs reference from njs Compatibility.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2259
diff
changeset
|
577 <tag-name id="string_concat"><literal>String.prototype.concat(<value>string1</value>[, ..., |
2186
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
578 <value>stringN</value>])</literal></tag-name> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
579 <tag-desc> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
580 Returns a string that contains the concatenation of specified |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
581 <literal>strings</literal>. |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
582 <example> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
583 >> "a".concat("b", "c") |
2214
e029f4bc7ede
Added quotes to njs examples.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2212
diff
changeset
|
584 'abc' |
2186
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
585 </example> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
586 </tag-desc> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
587 |
2267
c30048802769
Added links to njs reference from njs Compatibility.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2259
diff
changeset
|
588 <tag-name id="string_endswith"><literal>String.prototype.endsWith(<value>searchString</value>[, |
2186
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
589 <value>length</value>])</literal></tag-name> |
8e2b3aadc3ce
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590 <tag-desc> |
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591 Returns <literal>true</literal> if a string ends with the characters |
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592 of a specified string, otherwise <literal>false</literal>. |
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593 The optional <literal>length</literal> parameter is the the length of string. |
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594 If omitted, the default value is the length of the string. |
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595 <example> |
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|
596 >> 'abc'.endsWith('abc') |
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changeset
|
597 true |
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changeset
|
598 >> 'abca'.endsWith('abc') |
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parents:
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|
599 false |
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parents:
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|
600 </example> |
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parents:
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diff
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|
601 </tag-desc> |
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602 |
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603 <tag-name id="string_frombytes"><literal>String.prototype.fromBytes(<value>start</value>[, |
2186
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|
604 <value>end</value>])</literal></tag-name> |
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parents:
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|
605 <tag-desc> |
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|
606 (njs specific) Returns a new Unicode string from a byte string |
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Added njs String object.
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|
607 where each byte is replaced with a corresponding Unicode code point. |
8e2b3aadc3ce
Added njs String object.
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diff
changeset
|
608 </tag-desc> |
8e2b3aadc3ce
Added njs String object.
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|
609 |
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Added links to njs reference from njs Compatibility.
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changeset
|
610 <tag-name id="string_fromutf8"><literal>String.prototype.fromUTF8(<value>start</value>[, |
2186
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|
611 <value>end</value>])</literal></tag-name> |
8e2b3aadc3ce
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|
612 <tag-desc> |
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diff
changeset
|
613 (njs specific) Converts a byte string containing a valid UTF8 string |
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parents:
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|
614 into a Unicode string, |
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parents:
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|
615 otherwise <literal>null</literal> is returned. |
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|
616 </tag-desc> |
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Added njs String object.
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|
617 |
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|
618 <tag-name id="string_includes"><literal>String.prototype.includes(<value>searchString</value>[, |
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619 <value>position</value>]))</literal></tag-name> |
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620 <tag-desc> |
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|
621 Returns <literal>true</literal> if a string is found within another string, |
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|
622 otherwise <literal>false</literal>. |
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|
623 The optional <literal>position</literal> parameter is the position |
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624 within the string at which to begin search for <literal>searchString</literal>. |
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parents:
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625 Default value is 0. |
8e2b3aadc3ce
Added njs String object.
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|
626 <example> |
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changeset
|
627 >> 'abc'.includes('bc') |
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diff
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|
628 true |
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diff
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|
629 </example> |
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parents:
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|
630 </tag-desc> |
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changeset
|
631 |
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|
632 <tag-name id="string_indexof"><literal>String.prototype.indexOf(<value>searchString</value>[, |
2186
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|
633 <value>fromIndex</value>])</literal></tag-name> |
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2183
diff
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|
634 <tag-desc> |
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parents:
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|
635 Returns the position of the first occurrence |
2315
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parents:
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diff
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|
636 of the <literal>searchString</literal>. |
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|
637 The search is started at <literal>fromIndex</literal>. |
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changeset
|
638 Returns <value>-1</value> if the value is not found. |
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diff
changeset
|
639 The <literal>fromIndex</literal> is an integer, |
8e2b3aadc3ce
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|
640 default value is 0. |
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parents:
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changeset
|
641 If <literal>fromIndex</literal> is lower than 0 |
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Added njs String object.
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parents:
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diff
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|
642 or greater than |
8e2b3aadc3ce
Added njs String object.
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|
643 <link id="string_length">String.prototype.length</link><value></value>, |
8e2b3aadc3ce
Added njs String object.
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diff
changeset
|
644 the search starts at index <value>0</value> and |
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|
645 <value>String.prototype.length</value>. |
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Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
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2183
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|
646 <example> |
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|
647 >> 'abcdef'.indexOf('de', 2) |
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|
648 3 |
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Added njs String object.
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|
649 </example> |
8e2b3aadc3ce
Added njs String object.
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|
650 </tag-desc> |
8e2b3aadc3ce
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diff
changeset
|
651 |
2267
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diff
changeset
|
652 <tag-name id="string_lastindexof"><literal>String.prototype.lastIndexOf(<value>searchString</value>[, |
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653 <value>fromIndex</value>])</literal></tag-name> |
8e2b3aadc3ce
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diff
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|
654 <tag-desc> |
8e2b3aadc3ce
Added njs String object.
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|
655 Returns the position of the last occurrence |
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diff
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|
656 of the <literal>searchString</literal>, |
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parents:
2183
diff
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|
657 searching backwards from <literal>fromIndex</literal>. |
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|
658 Returns <value>-1</value> if the value is not found. |
8e2b3aadc3ce
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|
659 If <literal>searchString</literal> is empty, |
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changeset
|
660 then <literal>fromIndex</literal> is returned. |
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parents:
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|
661 <example> |
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parents:
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diff
changeset
|
662 >> "nginx".lastIndexOf("gi") |
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|
663 1 |
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|
664 </example> |
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Added njs String object.
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|
665 </tag-desc> |
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Added njs String object.
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|
666 |
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|
667 <tag-name id="string_length"><literal>String.prototype.length</literal></tag-name> |
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2183
diff
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|
668 <tag-desc> |
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Added njs String object.
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|
669 Returns the length of the string. |
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|
670 <example> |
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|
671 >> 'αβγδ'.length |
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|
672 4 |
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Added njs String object.
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|
673 </example> |
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Added njs String object.
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parents:
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|
674 </tag-desc> |
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Added njs String object.
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|
675 |
2267
c30048802769
Added links to njs reference from njs Compatibility.
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|
676 <tag-name id="string_match"><literal>String.prototype.match([<value>regexp</value>])</literal></tag-name> |
2186
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|
677 <tag-desc> |
8e2b3aadc3ce
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|
678 Matches a string against a <literal>regexp</literal>. |
8e2b3aadc3ce
Added njs String object.
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diff
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|
679 <example> |
8e2b3aadc3ce
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|
680 >> 'nginx'.match( /ng/i ) |
2214
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Added quotes to njs examples.
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parents:
2212
diff
changeset
|
681 'ng' |
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parents:
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|
682 </example> |
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changeset
|
683 </tag-desc> |
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Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
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diff
changeset
|
684 |
2212
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Documented padEnd() and padStart() for njs.
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parents:
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|
685 <tag-name id="string_padend"><literal>String.prototype.padEnd(<value>length</value> |
c34a885b9d99
Documented padEnd() and padStart() for njs.
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parents:
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changeset
|
686 [, <value>string</value>])</literal></tag-name> |
c34a885b9d99
Documented padEnd() and padStart() for njs.
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parents:
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|
687 <tag-desc> |
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Documented padEnd() and padStart() for njs.
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parents:
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diff
changeset
|
688 Returns a string of a specified <literal>length</literal> |
2315
ae56e4613280
Corrected language in njs.
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parents:
2313
diff
changeset
|
689 with the pad <literal>string</literal> applied to the end of the specified |
2337
867fe207f13e
Updated links to changes.xml in njs Reference.
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parents:
2332
diff
changeset
|
690 string (<link doc="changes.xml" id="njs0.2.3">0.2.3</link>). |
2212
c34a885b9d99
Documented padEnd() and padStart() for njs.
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parents:
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diff
changeset
|
691 <example> |
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Documented padEnd() and padStart() for njs.
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parents:
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diff
changeset
|
692 >> '1234'.padEnd(8, 'abcd') |
c34a885b9d99
Documented padEnd() and padStart() for njs.
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parents:
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|
693 '1234abcd' |
c34a885b9d99
Documented padEnd() and padStart() for njs.
Yaroslav Zhuravlev <yar@nginx.com>
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|
694 </example> |
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Documented padEnd() and padStart() for njs.
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|
695 </tag-desc> |
c34a885b9d99
Documented padEnd() and padStart() for njs.
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diff
changeset
|
696 |
c34a885b9d99
Documented padEnd() and padStart() for njs.
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parents:
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diff
changeset
|
697 <tag-name id="string_padstart"><literal>String.prototype.padStart(<value>length</value> |
c34a885b9d99
Documented padEnd() and padStart() for njs.
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|
698 [, <value>string</value>])</literal></tag-name> |
c34a885b9d99
Documented padEnd() and padStart() for njs.
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parents:
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diff
changeset
|
699 <tag-desc> |
c34a885b9d99
Documented padEnd() and padStart() for njs.
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changeset
|
700 Returns a string of a specified <literal>length</literal> |
2315
ae56e4613280
Corrected language in njs.
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parents:
2313
diff
changeset
|
701 with the pad <literal>string</literal> applied to the start of the specified |
2337
867fe207f13e
Updated links to changes.xml in njs Reference.
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parents:
2332
diff
changeset
|
702 string (<link doc="changes.xml" id="njs0.2.3">0.2.3</link>). |
2212
c34a885b9d99
Documented padEnd() and padStart() for njs.
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|
703 <example> |
c34a885b9d99
Documented padEnd() and padStart() for njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2211
diff
changeset
|
704 >> '1234'.padStart(8, 'abcd') |
c34a885b9d99
Documented padEnd() and padStart() for njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2211
diff
changeset
|
705 'abcd1234' |
c34a885b9d99
Documented padEnd() and padStart() for njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2211
diff
changeset
|
706 </example> |
c34a885b9d99
Documented padEnd() and padStart() for njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2211
diff
changeset
|
707 </tag-desc> |
c34a885b9d99
Documented padEnd() and padStart() for njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2211
diff
changeset
|
708 |
2267
c30048802769
Added links to njs reference from njs Compatibility.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2259
diff
changeset
|
709 <tag-name id="string_repeat"><literal>String.prototype.repeat(<value>number</value>)</literal></tag-name> |
2186
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
710 <tag-desc> |
2315
ae56e4613280
Corrected language in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2313
diff
changeset
|
711 Returns a string |
2186
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
712 with the specified <literal>number</literal> of copies of the string. |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
713 <example> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
714 >> 'abc'.repeat(3) |
2214
e029f4bc7ede
Added quotes to njs examples.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2212
diff
changeset
|
715 'abcabcabc' |
2186
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
716 </example> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
717 </tag-desc> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
718 |
2267
c30048802769
Added links to njs reference from njs Compatibility.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2259
diff
changeset
|
719 <tag-name id="string_replace"><literal>String.prototype.replace([<value>regexp</value>|<value>string</value>[, |
2186
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
720 <value>string</value>|<value>function</value>]])</literal></tag-name> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
721 <tag-desc> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
722 Returns a new string with matches of a pattern |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
723 (<literal>string</literal> or a <literal>regexp</literal>) |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
724 replaced by a <literal>string</literal> or a <literal>function</literal>. |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
725 <example> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
726 >> 'abcdefgh'.replace('d', 1) |
2214
e029f4bc7ede
Added quotes to njs examples.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2212
diff
changeset
|
727 'abc1efgh' |
2186
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
728 </example> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
729 </tag-desc> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
730 |
2267
c30048802769
Added links to njs reference from njs Compatibility.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2259
diff
changeset
|
731 <tag-name id="string_search"><literal>String.prototype.search([<value>regexp</value>])</literal></tag-name> |
2186
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
732 <tag-desc> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
733 Searches for a string using a <literal>regexp</literal> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
734 <example> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
735 >> 'abcdefgh'.search('def') |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
736 3 |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
737 </example> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
738 </tag-desc> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
739 |
2267
c30048802769
Added links to njs reference from njs Compatibility.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2259
diff
changeset
|
740 <tag-name id="string_slice"><literal>String.prototype.slice(<value>start</value>[, |
2186
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
741 <value>end</value>])</literal></tag-name> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
742 <tag-desc> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
743 Returns a new string containing a part of an |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
744 original string between <literal>start</literal> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
745 and <literal>end</literal> or |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
746 from <literal>start</literal> to the end of the string. |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
747 <example> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
748 >> 'abcdefghijklmno'.slice(NaN, 5) |
2214
e029f4bc7ede
Added quotes to njs examples.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2212
diff
changeset
|
749 'abcde' |
2186
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
750 </example> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
751 </tag-desc> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
752 |
2268
cd1b26111884
Moved string.split to follow alphabetical order.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2267
diff
changeset
|
753 <tag-name id="string_split"><literal>String.prototype.split(([<value>string</value>|<value>regexp</value>[, |
cd1b26111884
Moved string.split to follow alphabetical order.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2267
diff
changeset
|
754 <value>limit</value>]]))</literal></tag-name> |
cd1b26111884
Moved string.split to follow alphabetical order.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2267
diff
changeset
|
755 <tag-desc> |
cd1b26111884
Moved string.split to follow alphabetical order.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2267
diff
changeset
|
756 Returns match of a string against a <literal>regexp</literal>. |
cd1b26111884
Moved string.split to follow alphabetical order.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2267
diff
changeset
|
757 The optional <literal>limit</literal> parameter is an integer that specifies |
cd1b26111884
Moved string.split to follow alphabetical order.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2267
diff
changeset
|
758 a limit on the number of splits to be found. |
cd1b26111884
Moved string.split to follow alphabetical order.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2267
diff
changeset
|
759 <example> |
cd1b26111884
Moved string.split to follow alphabetical order.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2267
diff
changeset
|
760 >> 'abc'.split('') |
cd1b26111884
Moved string.split to follow alphabetical order.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2267
diff
changeset
|
761 [ |
cd1b26111884
Moved string.split to follow alphabetical order.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2267
diff
changeset
|
762 'a', |
cd1b26111884
Moved string.split to follow alphabetical order.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2267
diff
changeset
|
763 'b', |
cd1b26111884
Moved string.split to follow alphabetical order.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2267
diff
changeset
|
764 'c' |
cd1b26111884
Moved string.split to follow alphabetical order.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2267
diff
changeset
|
765 ] |
cd1b26111884
Moved string.split to follow alphabetical order.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2267
diff
changeset
|
766 </example> |
cd1b26111884
Moved string.split to follow alphabetical order.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2267
diff
changeset
|
767 </tag-desc> |
cd1b26111884
Moved string.split to follow alphabetical order.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2267
diff
changeset
|
768 |
2267
c30048802769
Added links to njs reference from njs Compatibility.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2259
diff
changeset
|
769 <tag-name id="string_startswith"><literal>String.prototype.startsWith(<value>searchString</value>[, |
2186
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
770 <value>position</value>])</literal></tag-name> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
771 <tag-desc> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
772 Returns <literal>true</literal> if a string begins with the characters |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
773 of a specified string, otherwise <literal>false</literal>. |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
774 The optional <literal>position</literal> parameter is the position |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
775 in this string at which to begin search for <literal>searchString</literal>. |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
776 Default value is 0. |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
777 <example> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
778 >> 'abc'.startsWith('abc') |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
779 true |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
780 > 'aabc'.startsWith('abc') |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
781 false |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
782 </example> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
783 </tag-desc> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
784 |
2267
c30048802769
Added links to njs reference from njs Compatibility.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2259
diff
changeset
|
785 <tag-name id="string_substr"><literal>String.prototype.substr(<value>start</value>[, |
2186
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
786 <value>length</value>])</literal></tag-name> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
787 <tag-desc> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
788 Returns the part of the string of the specified <literal>length</literal> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
789 from <literal>start</literal> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
790 or from <literal>start</literal> to the end of the string. |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
791 <example> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
792 >> 'abcdefghijklmno'.substr(3, 5) |
2214
e029f4bc7ede
Added quotes to njs examples.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2212
diff
changeset
|
793 'defgh' |
2186
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
794 </example> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
795 </tag-desc> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
796 |
2267
c30048802769
Added links to njs reference from njs Compatibility.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2259
diff
changeset
|
797 <tag-name id="string_substring"><literal>String.prototype.substring(<value>start</value>[, |
2186
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
798 <value>end</value>])</literal></tag-name> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
799 <tag-desc> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
800 Returns the part of the string between |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
801 <literal>start</literal> and <literal>end</literal> or |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
802 from <literal>start</literal> to the end of the string. |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
803 <example> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
804 >> 'abcdefghijklmno'.substring(3, 5) |
2214
e029f4bc7ede
Added quotes to njs examples.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2212
diff
changeset
|
805 'de' |
2186
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
806 </example> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
807 </tag-desc> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
808 |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
809 <tag-name id="string_tobytes"><literal>String.prototype.toBytes(start[, |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
810 end])</literal></tag-name> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
811 <tag-desc> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
812 (njs specific) Serializes a Unicode string to a byte string. |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
813 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
|
814 found in the string. |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
815 </tag-desc> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
816 |
2267
c30048802769
Added links to njs reference from njs Compatibility.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2259
diff
changeset
|
817 <tag-name id="string_tolowercase"><literal>String.prototype.toLowerCase()</literal></tag-name> |
2186
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
818 <tag-desc> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
819 Converts a string to lower case. |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
820 The method supports only simple Unicode folding. |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
821 <example> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
822 >> 'ΑΒΓΔ'.toLowerCase() |
2214
e029f4bc7ede
Added quotes to njs examples.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2212
diff
changeset
|
823 'αβγδ' |
2186
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
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2183
diff
changeset
|
824 </example> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
825 </tag-desc> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
826 |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
827 <tag-name><literal>String.prototype.toString([<value>encoding</value>])</literal></tag-name> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
828 <tag-desc> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
829 <para> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
830 If no <literal>encoding</literal> is specified, |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
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|
831 returns a specified Unicode string or byte string as in ECMAScript. |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
832 </para> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
833 |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
834 <para> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
835 (njs specific) If <literal>encoding</literal> is specified, |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
836 encodes a <link id="string_tobytes">byte string</link> to |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
837 <literal>hex</literal>, |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
838 <literal>base64</literal>, or |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
839 <literal>base64url</literal>. |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
840 </para> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
841 <example> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
842 >> 'αβγδ'.toUTF8().toString('base64url') |
2214
e029f4bc7ede
Added quotes to njs examples.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2212
diff
changeset
|
843 'zrHOss6zzrQ' |
2186
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
844 </example> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
845 </tag-desc> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
846 |
2267
c30048802769
Added links to njs reference from njs Compatibility.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2259
diff
changeset
|
847 <tag-name id="string_touppercase"><literal>String.prototype.toUpperCase()</literal></tag-name> |
2186
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
848 <tag-desc> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
849 Converts a string to upper case. |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
850 The method supports only simple Unicode folding. |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
851 <example> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
852 >> 'αβγδ'.toUpperCase() |
2214
e029f4bc7ede
Added quotes to njs examples.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2212
diff
changeset
|
853 'ΑΒΓΔ' |
2186
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
854 </example> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
855 </tag-desc> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
856 |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
857 <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
|
858 <value>end</value>])</literal></tag-name> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
859 <tag-desc> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
860 (njs specific) Serializes a Unicode string |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
861 to a byte string using UTF8 encoding. |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
862 <example> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
863 >> 'αβγδ'.toUTF8().length |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
864 8 |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
865 >> 'αβγδ'.length |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
866 4 |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
867 </example> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
868 </tag-desc> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
869 |
2267
c30048802769
Added links to njs reference from njs Compatibility.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2259
diff
changeset
|
870 <tag-name id="string_trim"><literal>String.prototype.trim()</literal></tag-name> |
2186
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
871 <tag-desc> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
872 Removes whitespaces from both ends of a string. |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
873 <example> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
874 >> ' abc '.trim() |
2214
e029f4bc7ede
Added quotes to njs examples.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2212
diff
changeset
|
875 'abc' |
2186
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
876 </example> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
877 </tag-desc> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
878 |
2414 | 879 <tag-name id="string_trimend"><literal>String.prototype.trimEnd()</literal></tag-name> |
880 <tag-desc> | |
881 Removes whitespaces from the end of a string | |
882 (<link doc="changes.xml" id="njs0.3.4">0.3.4</link>). | |
883 <example> | |
884 >> ' abc '.trimEnd() | |
885 ' abc' | |
886 </example> | |
887 </tag-desc> | |
888 | |
889 <tag-name id="string_trimstart"><literal>String.prototype.trimStart()</literal></tag-name> | |
890 <tag-desc> | |
891 Removes whitespaces from the beginning of a string | |
892 (<link doc="changes.xml" id="njs0.3.4">0.3.4</link>). | |
893 <example> | |
894 >> ' abc '.trimStart() | |
895 'abc ' | |
896 </example> | |
897 </tag-desc> | |
898 | |
2186
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
899 <tag-name id="encodeuri"><literal>encodeURI(<value>URI</value>)</literal></tag-name> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
900 <tag-desc> |
2315
ae56e4613280
Corrected language in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2313
diff
changeset
|
901 Encodes a URI by replacing each instance of certain characters |
ae56e4613280
Corrected language in njs.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2313
diff
changeset
|
902 by one, two, three, or four escape sequences |
2186
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
903 representing the UTF-8 encoding of the character |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
904 <example> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
905 >> encodeURI('012αβγδ') |
2214
e029f4bc7ede
Added quotes to njs examples.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2212
diff
changeset
|
906 '012%CE%B1%CE%B2%CE%B3%CE%B4' |
2186
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
907 </example> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
908 </tag-desc> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
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="encodeuricomponent"><literal>encodeURIComponent(<value>encodedURIString</value>)</literal></tag-name> |
2186
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
911 <tag-desc> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
912 Encodes a URI by replacing each instance of certain characters |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
913 by one, two, three, or four escape sequences |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
914 representing the UTF-8 encoding of the character. |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
915 <example> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
916 >> encodeURIComponent('[@?=') |
2214
e029f4bc7ede
Added quotes to njs examples.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2212
diff
changeset
|
917 '%5B%40%3F%3D' |
2186
8e2b3aadc3ce
Added njs String object.
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parents:
2183
diff
changeset
|
918 </example> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
919 </tag-desc> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
920 |
2267
c30048802769
Added links to njs reference from njs Compatibility.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2259
diff
changeset
|
921 <tag-name id="decodeuri"><literal>decodeURI(<value>encodedURI</value>)</literal></tag-name> |
2186
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
922 <tag-desc> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
923 Decodes a previously <link id="encodeuri">encoded</link> URI. |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
924 <example> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
925 >> decodeURI('012%CE%B1%CE%B2%CE%B3%CE%B4') |
2214
e029f4bc7ede
Added quotes to njs examples.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2212
diff
changeset
|
926 '012αβγδ' |
2186
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
927 </example> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
928 </tag-desc> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
929 |
2267
c30048802769
Added links to njs reference from njs Compatibility.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2259
diff
changeset
|
930 <tag-name id="decodeuricomponent"><literal>decodeURIComponent(<value>decodedURIString</value>)</literal></tag-name> |
2186
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 Decodes an encoded component of a previously encoded URI. |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
933 <example> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
934 >> decodeURIComponent('%5B%40%3F%3D') |
2214
e029f4bc7ede
Added quotes to njs examples.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2212
diff
changeset
|
935 '[@?=' |
2186
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
936 </example> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
937 </tag-desc> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
938 |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
939 </list> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
940 </para> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
941 |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
942 </section> |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
943 |
8e2b3aadc3ce
Added njs String object.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2183
diff
changeset
|
944 |
2176 | 945 <section id="core_json" name="JSON"> |
946 | |
947 <para> | |
948 The <literal>JSON</literal> object (ES 5.1) provides functions | |
949 to convert njs values to and from JSON format. | |
950 <list type="tag"> | |
951 | |
2394
bde611cbb7ae
Reordered some items in njs Compatibility.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2356
diff
changeset
|
952 <tag-name id="core_json_parse"><literal>JSON.parse(<value>string</value>[, |
2176 | 953 <value>reviver</value>])</literal></tag-name> |
954 <tag-desc> | |
955 Converts a <literal>string</literal> that represents JSON data | |
956 into an njs object (<literal>{...}</literal>) or | |
957 array (<literal>[...]</literal>). | |
958 The optional <literal>reviver</literal> parameter is a function (key, value) | |
959 that will be called for each (key,value) pair and can transform the value. | |
960 </tag-desc> | |
961 | |
2394
bde611cbb7ae
Reordered some items in njs Compatibility.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2356
diff
changeset
|
962 <tag-name id="core_json_stringify"><literal>JSON.stringify(<value>value</value>[, |
2176 | 963 <value>replacer</value>] [, <value>space</value>])</literal></tag-name> |
964 <tag-desc> | |
965 Converts an njs object back to JSON. | |
966 The obligatory <literal>value</literal> parameter is generally a JSON | |
967 <literal>object</literal> or <literal>array</literal> that will be converted. | |
968 If the value has a <literal>toJSON()</literal> method, | |
969 it defines how the object will be serialized. | |
970 The optional <literal>replacer</literal> parameter is | |
971 a <literal>function</literal> or <literal>array</literal> | |
972 that transforms results. | |
973 The optional <literal>space</literal> parameter is | |
974 a <literal>string</literal> or <literal>number</literal>. | |
975 If it is a <literal>number</literal>, | |
976 it indicates the number of white spaces placed before a result | |
977 (no more than 10). | |
978 If it is a <literal>string</literal>, | |
979 it is used as a white space (or first 10 characters of it). | |
980 If omitted or is <literal>null</literal>, no white space is used. | |
981 </tag-desc> | |
982 </list> | |
983 </para> | |
984 | |
985 <para> | |
986 <example> | |
987 >> var json = JSON.parse('{"a":1, "b":true}') | |
988 >> json.a | |
989 1 | |
990 | |
991 >> JSON.stringify(json) | |
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992 '{"a":1,"b":true}' |
2176 | 993 |
994 >> JSON.stringify({ x: [10, undefined, function(){}] }) | |
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995 '{"x":[10,null,null]}' |
2176 | 996 |
997 >> JSON.stringify({"a":1, "toJSON": function() {return "xxx"}}) | |
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998 '"xxx"' |
2176 | 999 |
1000 # Example with function replacer | |
1001 | |
1002 >> function replacer(key, value) {return (typeof value === 'string') ? undefined : value} | |
1003 >>JSON.stringify({a:1, b:"b", c:true}, replacer) | |
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1004 '{"a":1,"c":true}' |
2176 | 1005 </example> |
1006 </para> | |
1007 | |
1008 </section> | |
1009 | |
2177 | 1010 |
1011 <section id="crypto" name="Crypto"> | |
1012 | |
1013 <para> | |
1014 The Crypto module provides cryptographic functionality support. | |
1015 The Crypto module object is returned by <literal>require('crypto')</literal>. | |
1016 </para> | |
1017 | |
1018 <para> | |
1019 <list type="tag"> | |
1020 | |
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1021 <tag-name id="crypto_createhash"><literal>crypto.createHash(<value>algorithm</value>)</literal></tag-name> |
2177 | 1022 <tag-desc> |
1023 Creates and returns a <link id="crypto_hash">Hash</link> object | |
1024 that can be used to generate hash digests | |
1025 using the given <value>algorithm</value>. | |
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1026 The algorithm can be |
2177 | 1027 <literal>md5</literal>, |
1028 <literal>sha1</literal>, and | |
1029 <literal>sha256</literal>. | |
1030 </tag-desc> | |
1031 | |
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1032 <tag-name id="crypto_createhmac"><literal>crypto.createHmac(<value>algorithm</value>, |
2177 | 1033 <value>secret key</value>)</literal></tag-name> |
1034 <tag-desc> | |
1035 Creates and returns an <link id="crypto_hmac">HMAC</link> object | |
1036 that uses the given <value>algorithm</value> and <value>secret key</value>. | |
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1037 The algorithm can be |
2177 | 1038 <literal>md5</literal>, |
1039 <literal>sha1</literal>, and | |
1040 <literal>sha256</literal>. | |
1041 </tag-desc> | |
1042 | |
1043 </list> | |
1044 </para> | |
1045 | |
1046 | |
1047 <section id="crypto_hash" name="Hash"> | |
1048 | |
1049 <para> | |
1050 <list type="tag"> | |
1051 | |
1052 <tag-name><literal>hash.update(<value>data</value>)</literal></tag-name> | |
1053 <tag-desc> | |
1054 Updates the hash content with the given <value>data</value>. | |
1055 </tag-desc> | |
1056 | |
1057 <tag-name><literal>hash.digest([<value>encoding</value>])</literal></tag-name> | |
1058 <tag-desc> | |
1059 Calculates the digest of all of the data passed using | |
1060 <literal>hash.update()</literal>. | |
1061 The encoding can be | |
1062 <literal>hex</literal>, | |
1063 <literal>base64</literal>, and | |
1064 <literal>base64url</literal>. | |
1065 If encoding is not provided, a byte string is returned. | |
1066 </tag-desc> | |
1067 | |
1068 </list> | |
1069 </para> | |
1070 | |
1071 <para> | |
1072 <example> | |
1073 >> var cr = require('crypto') | |
1074 undefined | |
1075 | |
1076 >> cr.createHash('sha1').update('A').update('B').digest('base64url') | |
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1077 'BtlFlCqiamG-GMPiK_GbvKjdK10' |
2177 | 1078 </example> |
1079 </para> | |
1080 | |
1081 </section> | |
1082 | |
1083 | |
1084 <section id="crypto_hmac" name="HMAC"> | |
1085 | |
1086 <para> | |
1087 <list type="tag"> | |
1088 | |
1089 <tag-name><literal>hmac.update(<value>data</value>)</literal></tag-name> | |
1090 <tag-desc> | |
1091 Updates the HMAC content with the given <value>data</value>. | |
1092 </tag-desc> | |
1093 | |
1094 <tag-name><literal>hmac.digest([<value>encoding</value>])</literal></tag-name> | |
1095 <tag-desc> | |
1096 Calculates the HMAC digest of all of the data passed using | |
1097 <literal>hmac.update()</literal>. | |
1098 The encoding can be | |
1099 <literal>hex</literal>, | |
1100 <literal>base64</literal>, and | |
1101 <literal>base64url</literal>. | |
1102 If encoding is not provided, a byte string is returned. | |
1103 </tag-desc> | |
1104 </list> | |
1105 </para> | |
1106 | |
1107 <para> | |
1108 <example> | |
1109 >> var cr = require('crypto') | |
1110 undefined | |
1111 | |
1112 >> cr.createHmac('sha1', 'secret.key').update('AB').digest('base64url') | |
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1113 'Oglm93xn23_MkiaEq_e9u8zk374' |
2177 | 1114 </example> |
1115 </para> | |
1116 | |
1117 </section> | |
1118 | |
1119 </section> | |
1120 | |
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1121 <section id="njs_api_timers" name="Timers"> |
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1122 |
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1123 <para> |
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1124 |
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1125 <list type="tag"> |
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1126 |
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1127 <tag-name id="cleartimeout"><literal>clearTimeout(<value>timeout</value>)</literal></tag-name> |
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1128 <tag-desc> |
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1129 Cancels a <literal>timeout</literal> object |
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1130 created by <link id="settimeout">setTimeout()</link>. |
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1131 </tag-desc> |
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1132 |
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1133 <tag-name id="settimeout"><literal>setTimeout(<value>function</value>, |
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1134 <value>ms</value>[, <value>arg1</value>, <value>argN</value>])</literal></tag-name> |
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1135 <tag-desc> |
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1136 Calls a <literal>function</literal> |
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1137 after a specified number of <literal>milliseconds</literal>. |
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1138 One or more optional <literal>arguments</literal> |
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1139 can be passed to the specified function. |
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1140 Returns a <literal>timeout</literal> object. |
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1141 <example> |
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1142 function handler(v) |
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1143 { |
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1144 // ... |
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1145 } |
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1146 |
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1147 t = setTimeout(handler, 12); |
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1148 |
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1149 // ... |
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1150 |
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1151 clearTimeout(t); |
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1152 </example> |
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1153 </tag-desc> |
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1154 |
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1155 </list> |
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1156 </para> |
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1157 |
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1158 </section> |
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1159 |
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1160 |
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1161 <section id="njs_api_fs" name="File System"> |
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1162 |
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1163 <para> |
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1164 The File System module provides operations with files. |
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1165 The module object is returned by <literal>require('fs')</literal>. |
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1166 <list type="tag"> |
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1167 |
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1168 <tag-name id="appendfilesync"><literal>appendFileSync(<value>filename</value>, |
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1169 <value>data</value>[, <value>options</value>])</literal></tag-name> |
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1170 <tag-desc> |
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1171 Synchronously appends specified <literal>data</literal> |
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1172 to a file with provided <literal>filename</literal>. |
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1173 If the file does not exist, it will be created. |
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1174 The <literal>options</literal> parameter is expected to be |
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1175 an object with the following keys: |
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1176 <list type="tag"> |
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1177 |
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1178 <tag-name><literal>mode</literal></tag-name> |
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1179 <tag-desc> |
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1180 mode option, by default is <literal>0o666</literal> |
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1181 </tag-desc> |
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1182 |
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1183 <tag-name><literal>flag</literal></tag-name> |
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1184 <tag-desc> |
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1185 file system <link id="njs_api_fs_flags">flag</link>, |
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1186 by default is <literal>a</literal> |
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1187 </tag-desc> |
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1188 |
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1189 </list> |
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1190 </tag-desc> |
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1191 |
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1192 <tag-name id="readfilesync"><literal>readFileSync(<value>filename</value>[, |
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1193 <value>options</value>])</literal></tag-name> |
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1194 <tag-desc> |
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1195 Synchronously returns the contents of the file |
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1196 with provided <literal>filename</literal>. |
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1197 The <literal>options</literal> parameter holds |
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1198 <literal>string</literal> that specifies encoding. |
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1199 If not specified, a <link id="string_tobytes">byte string</link> is returned. |
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1200 If <literal>utf8</literal> encoding is specified, a Unicode string is returned. |
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|
1201 Otherwise, <literal>options</literal> is expected to be |
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Yaroslav Zhuravlev <yar@nginx.com>
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|
1202 an object with the following keys: |
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Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
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|
1203 <list type="tag"> |
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Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
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|
1204 |
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Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
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|
1205 <tag-name><literal>encoding</literal></tag-name> |
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Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
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|
1206 <tag-desc> |
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|
1207 encoding, by default is not specified. |
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Yaroslav Zhuravlev <yar@nginx.com>
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|
1208 The encoding can be <literal>utf8</literal> |
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Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
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|
1209 </tag-desc> |
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Yaroslav Zhuravlev <yar@nginx.com>
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|
1210 |
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Yaroslav Zhuravlev <yar@nginx.com>
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|
1211 <tag-name><literal>flag</literal></tag-name> |
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Yaroslav Zhuravlev <yar@nginx.com>
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|
1212 <tag-desc> |
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Documented fileSystem methods in njs.
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|
1213 file system <link id="njs_api_fs_flags">flag</link>, |
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Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
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|
1214 by default is <literal>r</literal> |
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Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
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|
1215 </tag-desc> |
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Documented fileSystem methods in njs.
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|
1216 |
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Yaroslav Zhuravlev <yar@nginx.com>
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|
1217 </list> |
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|
1218 <example> |
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Yaroslav Zhuravlev <yar@nginx.com>
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|
1219 >> var fs = require('fs') |
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Yaroslav Zhuravlev <yar@nginx.com>
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|
1220 undefined |
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Yaroslav Zhuravlev <yar@nginx.com>
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|
1221 >> var file = fs.readFileSync('/file/path.tar.gz') |
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Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
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|
1222 undefined |
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Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
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|
1223 >> var gzipped = /^\x1f\x8b/.test(file); gzipped |
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Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
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|
1224 true |
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Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
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|
1225 </example> |
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Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
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|
1226 </tag-desc> |
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|
1227 |
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|
1228 <tag-name id="writefilesync"><literal>writeFileSync(<value>filename</value>, |
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Documented fileSystem methods in njs.
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|
1229 <value>data</value>[, |
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Yaroslav Zhuravlev <yar@nginx.com>
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|
1230 <value>options</value>])</literal></tag-name> |
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Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
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|
1231 <tag-desc> |
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Documented fileSystem methods in njs.
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|
1232 Synchronously writes <literal>data</literal> to a file |
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Yaroslav Zhuravlev <yar@nginx.com>
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|
1233 with provided <literal>filename</literal>. |
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|
1234 If the file does not exist, it will be created, |
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|
1235 if the file exists, it will be replaced. |
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Documented fileSystem methods in njs.
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|
1236 The <literal>options</literal> parameter is expected to be |
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Documented fileSystem methods in njs.
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|
1237 an object with the following keys: |
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Documented fileSystem methods in njs.
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|
1238 <list type="tag"> |
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Documented fileSystem methods in njs.
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|
1239 <tag-name><literal>mode</literal></tag-name> |
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Yaroslav Zhuravlev <yar@nginx.com>
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|
1240 <tag-desc> |
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|
1241 mode option, by default is <literal>0o666</literal> |
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Documented fileSystem methods in njs.
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|
1242 </tag-desc> |
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|
1243 |
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|
1244 <tag-name><literal>flag</literal></tag-name> |
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|
1245 <tag-desc> |
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|
1246 file system <link id="njs_api_fs_flags">flag</link>, |
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Documented fileSystem methods in njs.
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|
1247 by default is <literal>w</literal> |
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Documented fileSystem methods in njs.
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|
1248 </tag-desc> |
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Documented fileSystem methods in njs.
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|
1249 |
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|
1250 </list> |
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|
1251 <example> |
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Documented fileSystem methods in njs.
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|
1252 >> var fs = require('fs') |
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Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
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|
1253 undefined |
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Documented fileSystem methods in njs.
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|
1254 >> var file = fs.writeFileSync('hello.txt', 'Hello world') |
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Documented fileSystem methods in njs.
Yaroslav Zhuravlev <yar@nginx.com>
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|
1255 undefined |
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Documented fileSystem methods in njs.
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|
1256 </example> |
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|
1257 </tag-desc> |
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|
1258 |
2414 | 1259 <tag-name id="renamesync"><literal>renameSync(<value>oldPath</value>, |
1260 <value>newPath</value>)</literal></tag-name> | |
1261 <tag-desc> | |
1262 Synchronously changes the name or location of a file from | |
1263 <literal>oldPath</literal> to <literal>newPath</literal> | |
1264 (<link doc="changes.xml" id="njs0.3.4">0.3.4</link>). | |
1265 <example> | |
1266 >> var fs = require('fs') | |
1267 undefined | |
1268 >> var file = fs.renameSync('hello.txt', 'HelloWorld.txt') | |
1269 undefined | |
1270 </example> | |
1271 </tag-desc> | |
1272 | |
2204
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|
1273 </list> |
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|
1274 </para> |
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|
1275 |
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|
1276 |
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|
1277 <section id="njs_api_fs_flags" name="File System Flags"> |
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Documented fileSystem methods in njs.
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|
1278 |
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|
1279 <para> |
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Documented fileSystem methods in njs.
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|
1280 The <literal>flag</literal> option can accept the following values: |
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|
1281 |
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Documented fileSystem methods in njs.
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|
1282 <list type= "bullet" compact="no"> |
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|
1283 |
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|
1284 <listitem> |
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|
1285 <literal>a</literal>—open a file for appending. |
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|
1286 The file is created if it does not exist |
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|
1287 </listitem> |
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|
1288 |
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|
1289 <listitem> |
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|
1290 <literal>ax</literal>—the same as <literal>a</literal> |
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|
1291 but fails if the file already exists |
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|
1292 </listitem> |
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|
1293 |
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|
1294 <listitem> |
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|
1295 <literal>a+</literal>—open a file for reading and appending. |
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|
1296 If the file does not exist, it will be created |
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|
1297 </listitem> |
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|
1298 |
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|
1299 <listitem> |
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|
1300 <literal>ax+</literal>—the same as <literal>a+</literal> |
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1301 but fails if the file already exists |
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1302 </listitem> |
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|
1303 |
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1304 <listitem> |
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|
1305 <literal>as</literal>—open a file for appending in synchronous mode. |
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|
1306 If the file does not exist, it will be created |
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1307 </listitem> |
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|
1308 |
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1309 <listitem> |
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1310 <literal>as+</literal>—open a file for reading and appending |
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1311 in synchronous mode. |
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1312 If the file does not exist, it will be created |
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1313 </listitem> |
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|
1314 |
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1315 <listitem> |
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1316 <literal>r</literal>—open a file for reading. |
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1317 An exception occurs if the file does not exist |
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1318 </listitem> |
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|
1319 |
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1320 <listitem> |
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|
1321 <literal>r+</literal>—open a file for reading and writing. |
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1322 An exception occurs if the file does not exist |
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1323 </listitem> |
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|
1324 |
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1325 <listitem> |
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|
1326 <literal>rs+</literal>—open a file for reading and writing |
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1327 in synchronous mode. |
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|
1328 Instructs the operating system to bypass the local file system cache |
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1329 </listitem> |
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parents:
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1330 |
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parents:
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1331 <listitem> |
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|
1332 <literal>w</literal>—open a file for writing. |
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1333 If the file does not exist, it will be created. |
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parents:
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|
1334 If the file exists, it will be replaced |
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parents:
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1335 </listitem> |
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parents:
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1336 |
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parents:
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1337 <listitem> |
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parents:
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1338 <literal>wx</literal>—the same as <literal>w</literal> |
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1339 but fails if the file already exists |
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parents:
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diff
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|
1340 </listitem> |
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parents:
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|
1341 |
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parents:
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|
1342 <listitem> |
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parents:
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1343 <literal>w+</literal>—open a file for reading and writing. |
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parents:
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1344 If the file does not exist, it will be created. |
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1345 If the file exists, it will be replaced |
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Documented fileSystem methods in njs.
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parents:
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|
1346 </listitem> |
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parents:
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|
1347 |
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parents:
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|
1348 <listitem> |
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parents:
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1349 <literal>wx+</literal>—the same as <literal>w+</literal> |
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1350 but fails if the file already exists |
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parents:
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1351 </listitem> |
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|
1352 |
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parents:
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1353 </list> |
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parents:
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1354 </para> |
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parents:
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1355 |
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parents:
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1356 </section> |
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1357 |
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parents:
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1358 </section> |
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1359 |
2176 | 1360 </section> |
1361 | |
2175
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1362 </article> |