1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56
|
<!DOCTYPE html>
<html lang='en'><head><meta http-equiv='content-type' content='text/html; charset=UTF-8' /></head><body>
<div class="entry-content">
<div class="entry-title roundTop">
<h1 class="jq-clearfix">event.preventDefault()</h1>
<div class="entry-meta jq-clearfix">
Categories:
<span class="category"><a href="http://api.jquery.com/category/events/" title="View all posts in Events">Events</a> > <a href="http://api.jquery.com/category/events/event-object/" title="View all posts in Event Object">Event Object</a></span>
</div>
</div>
<div id="event-preventDefault1" class="entry method">
<h2 class="jq-clearfix roundTop section-title">
<span class="name">event.preventDefault()</span> <span class="returns">Returns: <a class="return" href="http://api.jquery.com/Types/#undefined">undefined</a></span>
</h2>
<div class="jq-box roundBottom entry-details">
<p class="desc"><strong>Description: </strong> If this method is called, the default action of the event will not be triggered. </p>
<ul class="signatures"><li class="signature" id="event-preventDefault"><h4 class="name">
<span class="versionAdded">version added: <a href="/category/version/1.0/">1.0</a></span>event.preventDefault()</h4></li></ul>
<div class="longdesc"><p>For example, clicked anchors will not take the browser to a new URL. We can use <code>event.isDefaultPrevented()</code> to determine if this method has been called by an event handler that was triggered by this event.</p></div>
<h3>Example:</h3>
<div class="entry-examples" id="entry-examples"><div id="example-0">
<h4><span class="desc">Cancel the default action (navigation) of the click.</span></h4>
<pre class="prettyprint"><code class="example demo-code"><!DOCTYPE html>
<html>
<head>
<script src="http://code.jquery.com/jquery-1.7rc2.js"></script>
</head>
<body>
<a href="http://jquery.com">default click action is prevented</a>
<div id="log"></div>
<script>
$("a").click(function(event) {
event.preventDefault();
$('<div/>')
.append('default ' + event.type + ' prevented')
.appendTo('#log');
});
</script>
</body>
</html></code></pre>
<h4>Demo:</h4>
<div class="demo code-demo"></div>
</div></div>
</div>
</div>
</div>
</body></html>
|