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<!DOCTYPE html><html><head><meta charset="utf-8"><title>EventListener JavaScript API</title><meta name="description" content="Interactive API reference for the JavaScript EventListener Object. EventListener is an object that handles an event. It can be passed to addEventListener() instead of passing a Function. Any JavaScrip"><link rel="stylesheet" type="text/css" href="styles.css"><script type="text/javascript">var _gaq = _gaq || [];
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}</script><div class="topnav"><a href="/">JavaScripture</a><div class="bookmarks"><a class="bookmark contribute" href="https://github.com/nkronlage/JavaScripture">Contribute via GitHub</a> <a class="bookmark" href="/feedback">Feedback</a></div></div><div class="container"><nav class="leftnav"><div id="searchContainer"><input id="searchBox" type="text" placeholder="Search (Ctrl + S)" autocomplete="false"><div id="resultsBox" style="display:none;"></div></div><div id="apichooser"><a href="#" onclick="openApiChooser(); return false;"><div class="arrow"></div><span id="selectedsets"></span></a><div id="obscure"></div><div id="apisets"><ul></ul></div></div><div class="toc"><h2>EventListener</h2><div class="navgroup"><div class="group collapsed"><a href="#InstanceMethods" onclick="expandoClicked(this.parentNode); return false;"><div class="arrow"></div>Instance Methods</a><div class="subgroup"><a href="#handleEvent_Event">handleEvent</a></div></div></div><h2>DOM API</h2><div id="related-apis" class="navgroup"></div><h2>All API</h2><div id="rootObjs" class="navgroup"><span class="empty">No API set selected.</span></div></div></nav><div class="content"><h1 class="declaration"><span class="object">EventListener</span> <span class="type">: <a href="/Object">Object</a></span></h1><div class="metadata"></div><div class="objectdescription">EventListener is an object that handles an event. It can be passed to <a href="/EventTarget#addEventListener"><code>addEventListener()</code></a> instead of passing a <a href="/Function"><code>Function</code></a>. Any JavaScript object with a <a href="#handleEvent"><code>handleEvent</code></a> method can be used as an EventListener.<div class="membermetadata"><a href="https://dom.spec.whatwg.org/#callbackdef-eventlistener" class="spec">Spec</a></div></div><div><a name="InstanceMethods"></a><h2>Instance Methods</h2><div class="member"><div class="expand-members" title="Toggle showing all descriptions and examples"></div><a name="handleEvent"></a> <a name="handleEvent_Event"></a><div class="declaration"><span class="membername primary">handleEvent</span>(<span class="membername">event</span> : <a class="membertype" href="/Event">Event</a>) : <a class="membertype" href="/undefined">undefined</a></div><div class="member-body"><p class="description">The method called when the event is raised.</p><div class="htmlexample"><div class="codePanel"><h4>Example:</h4><textarea class="code" rows="19" cols="60" wrap="off">
<button id='myButton'>click</button>
<script>
var myButton = document.getElementById('myButton');
var listener = {
name: 'foo',
handleEvent: function(event) {
console.log(this.name + ' handling ' + event.type);
}
};
myButton.addEventListener('click', listener);
</script>
</textarea><a onclick='executeHTMLExample(this.parentNode.parentNode, "EventListener.handleEvent"); return false' href="#" class="run">Run</a></div><div class="resultsPanel"><h4>Results:</h4><div style="position: relative"><div class="htmlerrormessage" style="display: none"></div><iframe class="output" width="350" height="200"></iframe><pre class="results"> </pre></div></div></div><p></p></div></div></div><div class="bottomnav"><a href="/">home</a> <a href="/license">license</a> <a href="https://github.com/nkronlage/JavaScripture">contribute</a> <a href="/feedback">feedback</a> <a id="toggle-theme" href="#">toggle light/dark mode</a></div><div class="copyright">Copyright © JavaScripture Contributors</div></div></div></body><script src="javascripture.js"></script></html>