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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>JSDoc: Class: Amplitude</title>
<script src="scripts/prettify/prettify.js"> </script>
<script src="scripts/prettify/lang-css.js"> </script>
<!--[if lt IE 9]>
<script src="//html5shiv.googlecode.com/svn/trunk/html5.js"></script>
<![endif]-->
<link type="text/css" rel="stylesheet" href="styles/prettify-tomorrow.css">
<link type="text/css" rel="stylesheet" href="styles/jsdoc-default.css">
</head>
<body>
<div id="main">
<h1 class="page-title">Class: Amplitude</h1>
<section>
<header>
<h2>Amplitude</h2>
</header>
<article>
<div class="container-overview">
<h4 class="name" id="Amplitude"><span class="type-signature"></span>new Amplitude<span class="signature">()</span><span class="type-signature"></span></h4>
<div class="description">
Amplitude SDK API - instance manager.
Function calls directly on amplitude have been deprecated. Please call methods on the default shared instance: amplitude.getInstance() instead.
See <a href="https://github.com/amplitude/Amplitude-Javascript#300-update-and-logging-events-to-multiple-amplitude-apps">Readme</a> for more information about this change.
</div>
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="amplitude.js.html">amplitude.js</a>, <a href="amplitude.js.html#line11">line 11</a>
</li></ul></dd>
</dl>
<h5>Example</h5>
<pre class="prettyprint"><code>var amplitude = new Amplitude();</code></pre>
</div>
<h3 class="subsection-title">Members</h3>
<h4 class="name" id="__VERSION__"><span class="type-signature"></span>__VERSION__<span class="type-signature"></span></h4>
<div class="description">
Get the current version of Amplitude's Javascript SDK.
</div>
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="amplitude.js.html">amplitude.js</a>, <a href="amplitude.js.html#line365">line 365</a>
</li></ul></dd>
</dl>
<h5>Example</h5>
<pre class="prettyprint"><code>var amplitudeVersion = amplitude.__VERSION__;</code></pre>
<h3 class="subsection-title">Methods</h3>
<h4 class="name" id="clearUserProperties"><span class="type-signature"></span>clearUserProperties<span class="signature">()</span><span class="type-signature"></span></h4>
<div class="description">
Clear all of the user properties for the current user. Note: clearing user properties is irreversible!
</div>
<dl class="details">
<dt class="important tag-deprecated">Deprecated:</dt><dd><ul class="dummy"><li>Please use amplitude.getInstance().clearUserProperties();</li></ul></dd>
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="amplitude.js.html">amplitude.js</a>, <a href="amplitude.js.html#line230">line 230</a>
</li></ul></dd>
</dl>
<h5>Example</h5>
<pre class="prettyprint"><code>amplitude.clearUserProperties();</code></pre>
<h4 class="name" id="getSessionId"><span class="type-signature"></span>getSessionId<span class="signature">()</span><span class="type-signature"> → {number}</span></h4>
<div class="description">
Returns the id of the current session.
</div>
<dl class="details">
<dt class="important tag-deprecated">Deprecated:</dt><dd><ul class="dummy"><li>Please use amplitude.getInstance().getSessionId();</li></ul></dd>
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="amplitude.js.html">amplitude.js</a>, <a href="amplitude.js.html#line98">line 98</a>
</li></ul></dd>
</dl>
<h5>Returns:</h5>
<div class="param-desc">
Id of the current session.
</div>
<dl>
<dt>
Type
</dt>
<dd>
<span class="param-type">number</span>
</dd>
</dl>
<h4 class="name" id="identify"><span class="type-signature"></span>identify<span class="signature">(identify_obj, opt_callback)</span><span class="type-signature"></span></h4>
<div class="description">
Send an identify call containing user property operations to Amplitude servers.
See <a href="https://github.com/amplitude/Amplitude-Javascript#user-properties-and-user-property-operations">Readme</a>
for more information on the Identify API and user property operations.
</div>
<h5>Parameters:</h5>
<table class="params">
<thead>
<tr>
<th>Name</th>
<th>Type</th>
<th class="last">Description</th>
</tr>
</thead>
<tbody>
<tr>
<td class="name"><code>identify_obj</code></td>
<td class="type">
<span class="param-type"><a href="Identify.html">Identify</a></span>
</td>
<td class="description last">the Identify object containing the user property operations to send.</td>
</tr>
<tr>
<td class="name"><code>opt_callback</code></td>
<td class="type">
<span class="param-type"><a href="Amplitude.html#~eventCallback">Amplitude~eventCallback</a></span>
</td>
<td class="description last">(optional) callback function to run when the identify event has been sent.
Note: the server response code and response body from the identify event upload are passed to the callback function.</td>
</tr>
</tbody>
</table>
<dl class="details">
<dt class="important tag-deprecated">Deprecated:</dt><dd><ul class="dummy"><li>Please use amplitude.getInstance().identify(identify);</li></ul></dd>
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="amplitude.js.html">amplitude.js</a>, <a href="amplitude.js.html#line246">line 246</a>
</li></ul></dd>
</dl>
<h5>Example</h5>
<pre class="prettyprint"><code>var identify = new amplitude.Identify().set('colors', ['rose', 'gold']).add('karma', 1).setOnce('sign_up_date', '2016-03-31');
amplitude.identify(identify);</code></pre>
<h4 class="name" id="init"><span class="type-signature"></span>init<span class="signature">(apiKey, opt_userId, opt_config, opt_callback)</span><span class="type-signature"></span></h4>
<div class="description">
Initializes the Amplitude Javascript SDK with your apiKey and any optional configurations.
This is required before any other methods can be called.
</div>
<h5>Parameters:</h5>
<table class="params">
<thead>
<tr>
<th>Name</th>
<th>Type</th>
<th class="last">Description</th>
</tr>
</thead>
<tbody>
<tr>
<td class="name"><code>apiKey</code></td>
<td class="type">
<span class="param-type">string</span>
</td>
<td class="description last">The API key for your app.</td>
</tr>
<tr>
<td class="name"><code>opt_userId</code></td>
<td class="type">
<span class="param-type">string</span>
</td>
<td class="description last">(optional) An identifier for this user.</td>
</tr>
<tr>
<td class="name"><code>opt_config</code></td>
<td class="type">
<span class="param-type">object</span>
</td>
<td class="description last">(optional) Configuration options.
See <a href="https://github.com/amplitude/Amplitude-Javascript#configuration-options">Readme</a> for list of options and default values.</td>
</tr>
<tr>
<td class="name"><code>opt_callback</code></td>
<td class="type">
<span class="param-type">function</span>
</td>
<td class="description last">(optional) Provide a callback function to run after initialization is complete.</td>
</tr>
</tbody>
</table>
<dl class="details">
<dt class="important tag-deprecated">Deprecated:</dt><dd><ul class="dummy"><li>Please use amplitude.getInstance().init(apiKey, opt_userId, opt_config, opt_callback);</li></ul></dd>
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="amplitude.js.html">amplitude.js</a>, <a href="amplitude.js.html#line50">line 50</a>
</li></ul></dd>
</dl>
<h5>Example</h5>
<pre class="prettyprint"><code>amplitude.init('API_KEY', 'USER_ID', {includeReferrer: true, includeUtm: true}, function() { alert('init complete'); });</code></pre>
<h4 class="name" id="isNewSession"><span class="type-signature"></span>isNewSession<span class="signature">()</span><span class="type-signature"> → {boolean}</span></h4>
<div class="description">
Returns true if a new session was created during initialization, otherwise false.
</div>
<dl class="details">
<dt class="important tag-deprecated">Deprecated:</dt><dd><ul class="dummy"><li>Please use amplitude.getInstance().isNewSession();</li></ul></dd>
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="amplitude.js.html">amplitude.js</a>, <a href="amplitude.js.html#line88">line 88</a>
</li></ul></dd>
</dl>
<h5>Returns:</h5>
<div class="param-desc">
Whether a new session was created during initialization.
</div>
<dl>
<dt>
Type
</dt>
<dd>
<span class="param-type">boolean</span>
</dd>
</dl>
<h4 class="name" id="logEvent"><span class="type-signature"></span>logEvent<span class="signature">(eventType, eventProperties, opt_callback)</span><span class="type-signature"></span></h4>
<div class="description">
Log an event with eventType and eventProperties
</div>
<h5>Parameters:</h5>
<table class="params">
<thead>
<tr>
<th>Name</th>
<th>Type</th>
<th class="last">Description</th>
</tr>
</thead>
<tbody>
<tr>
<td class="name"><code>eventType</code></td>
<td class="type">
<span class="param-type">string</span>
</td>
<td class="description last">name of event</td>
</tr>
<tr>
<td class="name"><code>eventProperties</code></td>
<td class="type">
<span class="param-type">object</span>
</td>
<td class="description last">(optional) an object with string keys and values for the event properties.</td>
</tr>
<tr>
<td class="name"><code>opt_callback</code></td>
<td class="type">
<span class="param-type"><a href="Amplitude.html#~eventCallback">Amplitude~eventCallback</a></span>
</td>