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<ul>
<li><span class="stability_undefined"><a href="#globals_global_objects">Global Objects</a></span><ul>
<li><span class="stability_undefined"><a href="#globals_class_buffer">Class: Buffer</a></span></li>
<li><span class="stability_undefined"><a href="#globals_dirname">__dirname</a></span></li>
<li><span class="stability_undefined"><a href="#globals_filename">__filename</a></span></li>
<li><span class="stability_undefined"><a href="#globals_clearimmediate_immediateobject">clearImmediate(immediateObject)</a></span></li>
<li><span class="stability_undefined"><a href="#globals_clearinterval_intervalobject">clearInterval(intervalObject)</a></span></li>
<li><span class="stability_undefined"><a href="#globals_cleartimeout_timeoutobject">clearTimeout(timeoutObject)</a></span></li>
<li><span class="stability_undefined"><a href="#globals_console">console</a></span></li>
<li><span class="stability_undefined"><a href="#globals_exports">exports</a></span></li>
<li><span class="stability_undefined"><a href="#globals_global">global</a></span></li>
<li><span class="stability_undefined"><a href="#globals_module">module</a></span></li>
<li><span class="stability_undefined"><a href="#globals_process">process</a></span></li>
<li><span class="stability_undefined"><a href="#globals_require">require()</a></span><ul>
<li><span class="stability_undefined"><a href="#globals_require_cache">require.cache</a></span></li>
<li><span class="stability_0"><a href="#globals_require_extensions">require.extensions</a></span></li>
<li><span class="stability_undefined"><a href="#globals_require_resolve">require.resolve()</a></span></li>
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<li><span class="stability_undefined"><a href="#globals_setimmediate_callback_arg">setImmediate(callback[, arg][, ...])</a></span></li>
<li><span class="stability_undefined"><a href="#globals_setinterval_callback_delay_arg">setInterval(callback, delay[, arg][, ...])</a></span></li>
<li><span class="stability_undefined"><a href="#globals_settimeout_callback_delay_arg">setTimeout(callback, delay[, arg][, ...])</a></span></li>
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<div id="apicontent">
<h1>Global Objects<span><a class="mark" href="#globals_global_objects" id="globals_global_objects">#</a></span></h1>
<!-- type=misc -->
<p>These objects are available in all modules. Some of these objects aren't
actually in the global scope but in the module scope - this will be noted.</p>
<p>The objects listed here are specific to Node.js. There are a number of
<a href="https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects">built-in objects</a> that are part of the JavaScript language itself, which are
also globally accessible.</p>
<h2>Class: Buffer<span><a class="mark" href="#globals_class_buffer" id="globals_class_buffer">#</a></span></h2>
<div class="api_metadata">
<span>Added in: v0.1.103</span>
</div><!-- type=global -->
<ul>
<li><a href="https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Function" class="type"><Function></a></li>
</ul>
<p>Used to handle binary data. See the <a href="buffer.html">buffer section</a>.</p>
<h2>__dirname<span><a class="mark" href="#globals_dirname" id="globals_dirname">#</a></span></h2>
<div class="api_metadata">
<span>Added in: v0.1.27</span>
</div><!-- type=var -->
<ul>
<li><a href="https://developer.mozilla.org/en-US/docs/Web/JavaScript/Data_structures#String_type" class="type"><String></a></li>
</ul>
<p>The directory name of the current module. This the same as the
<a href="path.html#path_path_dirname_path"><code>path.dirname()</code></a> of the <a href="#globals_filename"><code>__filename</code></a>.</p>
<p><code>__dirname</code> isn't actually a global but rather local to each module.</p>
<p>Example: running <code>node example.js</code> from <code>/Users/mjr</code></p>
<pre><code class="lang-js">console.log(__dirname);
// Prints: /Users/mjr
console.log(path.dirname(__filename));
// Prints: /Users/mjr
</code></pre>
<h2>__filename<span><a class="mark" href="#globals_filename" id="globals_filename">#</a></span></h2>
<div class="api_metadata">
<span>Added in: v0.0.1</span>
</div><!-- type=var -->
<ul>
<li><a href="https://developer.mozilla.org/en-US/docs/Web/JavaScript/Data_structures#String_type" class="type"><String></a></li>
</ul>
<p>The file name of the current module. This is the resolved absolute path of the
current module file.</p>
<p>For a main program this is not necessarily the same as the file name used in the
command line.</p>
<p>See <a href="#globals_dirname"><code>__dirname</code></a> for the directory name of the current module.</p>
<p><code>__filename</code> isn't actually a global but rather local to each module.</p>
<p>Examples:</p>
<p>Running <code>node example.js</code> from <code>/Users/mjr</code></p>
<pre><code class="lang-js">console.log(__filename);
// Prints: /Users/mjr/example.js
console.log(__dirname);
// Prints: /Users/mjr
</code></pre>
<p>Given two modules: <code>a</code> and <code>b</code>, where <code>b</code> is a dependency of
<code>a</code> and there is a directory structure of:</p>
<ul>
<li><code>/Users/mjr/app/a.js</code></li>
<li><code>/Users/mjr/app/node_modules/b/b.js</code></li>
</ul>
<p>References to <code>__filename</code> within <code>b.js</code> will return
<code>/Users/mjr/app/node_modules/b/b.js</code> while references to <code>__filename</code> within
<code>a.js</code> will return <code>/Users/mjr/app/a.js</code>.</p>
<h2>clearImmediate(immediateObject)<span><a class="mark" href="#globals_clearimmediate_immediateobject" id="globals_clearimmediate_immediateobject">#</a></span></h2>
<div class="api_metadata">
<span>Added in: v0.9.1</span>
</div><!--type=global-->
<p><a href="timers.html#timers_clearimmediate_immediateobject"><code>clearImmediate</code></a> is described in the <a href="timers.html">timers</a> section.</p>
<h2>clearInterval(intervalObject)<span><a class="mark" href="#globals_clearinterval_intervalobject" id="globals_clearinterval_intervalobject">#</a></span></h2>
<div class="api_metadata">
<span>Added in: v0.0.1</span>
</div><!--type=global-->
<p><a href="timers.html#timers_clearinterval_intervalobject"><code>clearInterval</code></a> is described in the <a href="timers.html">timers</a> section.</p>
<h2>clearTimeout(timeoutObject)<span><a class="mark" href="#globals_cleartimeout_timeoutobject" id="globals_cleartimeout_timeoutobject">#</a></span></h2>
<div class="api_metadata">
<span>Added in: v0.0.1</span>
</div><!--type=global-->
<p><a href="timers.html#timers_cleartimeout_timeoutobject"><code>clearTimeout</code></a> is described in the <a href="timers.html">timers</a> section.</p>
<h2>console<span><a class="mark" href="#globals_console" id="globals_console">#</a></span></h2>
<div class="api_metadata">
<span>Added in: v0.1.100</span>
</div><!-- type=global -->
<ul>
<li><a href="https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object" class="type"><Object></a></li>
</ul>
<p>Used to print to stdout and stderr. See the <a href="console.html"><code>console</code></a> section.</p>
<h2>exports<span><a class="mark" href="#globals_exports" id="globals_exports">#</a></span></h2>
<div class="api_metadata">
<span>Added in: v0.1.12</span>
</div><!-- type=var -->
<p>A reference to the <code>module.exports</code> that is shorter to type.
See <a href="modules.html">module system documentation</a> for details on when to use <code>exports</code> and
when to use <code>module.exports</code>.</p>
<p><code>exports</code> isn't actually a global but rather local to each module.</p>
<p>See the <a href="modules.html">module system documentation</a> for more information.</p>
<h2>global<span><a class="mark" href="#globals_global" id="globals_global">#</a></span></h2>
<div class="api_metadata">
<span>Added in: v0.1.27</span>
</div><!-- type=global -->
<ul>
<li><a href="https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object" class="type"><Object></a> The global namespace object.</li>
</ul>
<p>In browsers, the top-level scope is the global scope. That means that in
browsers if you're in the global scope <code>var something</code> will define a global
variable. In Node.js this is different. The top-level scope is not the global
scope; <code>var something</code> inside an Node.js module will be local to that module.</p>
<h2>module<span><a class="mark" href="#globals_module" id="globals_module">#</a></span></h2>
<div class="api_metadata">
<span>Added in: v0.1.16</span>
</div><!-- type=var -->
<ul>
<li><a href="https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object" class="type"><Object></a></li>
</ul>
<p>A reference to the current module. In particular
<code>module.exports</code> is used for defining what a module exports and makes
available through <code>require()</code>.</p>
<p><code>module</code> isn't actually a global but rather local to each module.</p>
<p>See the <a href="modules.html">module system documentation</a> for more information.</p>
<h2>process<span><a class="mark" href="#globals_process" id="globals_process">#</a></span></h2>
<div class="api_metadata">
<span>Added in: v0.1.7</span>
</div><!-- type=global -->
<ul>
<li><a href="https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object" class="type"><Object></a></li>
</ul>
<p>The process object. See the <a href="process.html#process_process"><code>process</code> object</a> section.</p>
<h2>require()<span><a class="mark" href="#globals_require" id="globals_require">#</a></span></h2>
<div class="api_metadata">
<span>Added in: v0.1.13</span>
</div><!-- type=var -->
<ul>
<li><a href="https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Function" class="type"><Function></a></li>
</ul>
<p>To require modules. See the <a href="modules.html#modules_modules">Modules</a> section. <code>require</code> isn't actually a
global but rather local to each module.</p>
<h3>require.cache<span><a class="mark" href="#globals_require_cache" id="globals_require_cache">#</a></span></h3>
<div class="api_metadata">
<span>Added in: v0.3.0</span>
</div><ul>
<li><a href="https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object" class="type"><Object></a></li>
</ul>
<p>Modules are cached in this object when they are required. By deleting a key
value from this object, the next <code>require</code> will reload the module. Note that
this does not apply to <a href="addons.html">native addons</a>, for which reloading will result in an
Error.</p>
<h3>require.extensions<span><a class="mark" href="#globals_require_extensions" id="globals_require_extensions">#</a></span></h3>
<div class="api_metadata">
<span>Added in: v0.3.0</span>
<span>Deprecated since: v0.10.6 </span>
</div><pre class="api_stability api_stability_0">Stability: 0 - Deprecated</pre><ul>
<li><a href="https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object" class="type"><Object></a></li>
</ul>
<p>Instruct <code>require</code> on how to handle certain file extensions.</p>
<p>Process files with the extension <code>.sjs</code> as <code>.js</code>:</p>
<pre><code class="lang-js">require.extensions['.sjs'] = require.extensions['.js'];
</code></pre>
<p><strong>Deprecated</strong> In the past, this list has been used to load
non-JavaScript modules into Node.js by compiling them on-demand.
However, in practice, there are much better ways to do this, such as
loading modules via some other Node.js program, or compiling them to
JavaScript ahead of time.</p>
<p>Since the Module system is locked, this feature will probably never go
away. However, it may have subtle bugs and complexities that are best
left untouched.</p>
<h3>require.resolve()<span><a class="mark" href="#globals_require_resolve" id="globals_require_resolve">#</a></span></h3>
<div class="api_metadata">
<span>Added in: v0.3.0</span>
</div><p>Use the internal <code>require()</code> machinery to look up the location of a module,
but rather than loading the module, just return the resolved filename.</p>
<h2>setImmediate(callback[, arg][, ...])<span><a class="mark" href="#globals_setimmediate_callback_arg" id="globals_setimmediate_callback_arg">#</a></span></h2>
<div class="api_metadata">
<span>Added in: v0.9.1</span>
</div><!-- type=global -->
<p><a href="timers.html#timers_setimmediate_callback_arg"><code>setImmediate</code></a> is described in the <a href="timers.html">timers</a> section.</p>
<h2>setInterval(callback, delay[, arg][, ...])<span><a class="mark" href="#globals_setinterval_callback_delay_arg" id="globals_setinterval_callback_delay_arg">#</a></span></h2>
<div class="api_metadata">
<span>Added in: v0.0.1</span>
</div><!-- type=global -->
<p><a href="timers.html#timers_setinterval_callback_delay_arg"><code>setInterval</code></a> is described in the <a href="timers.html">timers</a> section.</p>
<h2>setTimeout(callback, delay[, arg][, ...])<span><a class="mark" href="#globals_settimeout_callback_delay_arg" id="globals_settimeout_callback_delay_arg">#</a></span></h2>
<div class="api_metadata">
<span>Added in: v0.0.1</span>
</div><!-- type=global -->
<p><a href="timers.html#timers_settimeout_callback_delay_arg"><code>setTimeout</code></a> is described in the <a href="timers.html">timers</a> section.</p>
</div>
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