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callbacks.locked.html
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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<title>callbacks.locked() | jQuery API 中文手册</title>
<meta name="author" content="jQuery 中文手册 - hemin.cn/jq/">
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</head>
<body id="split">
<div id="content" class="a2">
<div rel="callbacks.locked">
<h2><span>返回值:Boolean</span>callbacks.locked()</h2>
<h3><em>V1.7</em>概述</h3>
<div class="desc">
<p> 确定是否已被锁定的回调列表。 </p>
<div class="longdesc">
<p></p>
</div>
</div>
<div class="example">
<h3>示例</h3>
<span id="f_ad2"></span>
<h4>描述:</h4>
<p> 用 callbacks.locked() 确定是否已被锁定的回调列表。: </p>
<h5>jQuery 代码:</h5>
<pre><code>// a sample logging function to be added to a callbacks list
var foo = function( value ){
console.log( 'foo:' + value);
}
var callbacks = $.Callbacks();
// add the logging function to the callback list
callbacks.add( foo );
// fire the items on the list, passing an argument
callbacks.fire( 'hello' );
// outputs 'foo: hello'
// lock the callbacks list
callbacks.lock();
// test the lock-state of the list
console.log ( callbacks.locked() ); //true</code></pre>
</div>
</div>
</div>
</body>
</html>