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50 lines
No EOL
2.4 KiB
HTML
50 lines
No EOL
2.4 KiB
HTML
<!DOCTYPE html>
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<html lang='en'><head><meta http-equiv='content-type' content='text/html; charset=UTF-8' /></head><body>
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<div class="ui-page">
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<div class="ui-header">
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<h1>jQuery.proxy()</h1>
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</div>
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<div class="ui-content ui-body ui-body-c" id="jQuery.proxy1">
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<h2 class="jq-clearfix roundTop section-title">
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<span class="name">jQuery.proxy( function, context )</span> <span class="returns">Returns: <a class="return" href="http://docs.jquery.com/Types#Function">Function</a></span>
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</h2>
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<div class=" entry-details">
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<p class="desc"><strong>Description: </strong>Takes a function and returns a new one that will always have a particular context.</p>
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<ul class="signatures">
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<li class="signature" id="jQuery.proxy-function-context">
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<h4 class="name">
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<span class="versionAdded">version added: <a href="/category/version/1.4/">1.4</a></span>jQuery.proxy( function, context )</h4>
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<p class="arguement"><strong>function</strong>The function whose context will be changed.</p>
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<p class="arguement"><strong>context</strong>The object to which the context (`this`) of the function should be set.</p>
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</li>
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<li class="signature" id="jQuery.proxy-context-name">
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<h4 class="name">
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<span class="versionAdded">version added: <a href="/category/version/1.4/">1.4</a></span>jQuery.proxy( context, name )</h4>
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<p class="arguement"><strong>context</strong>The object to which the context of the function should be set.</p>
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<p class="arguement"><strong>name</strong>The name of the function whose context will be changed (should be a property of the 'context' object.</p>
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</li>
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</ul>
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<div class="longdesc"><p>This method is most useful for attaching event handlers to an element where the context is pointing back to a different object. Additionally, jQuery makes sure that even if you bind the function returned from jQuery.proxy() it will still unbind the correct function, if passed the original.</p></div>
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<h3>Example:</h3>
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<div id="entry-examples" class="entry-examples"><div id="example-0">
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<h4><span class="desc">Enforce the context of the function.</span></h4>
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<pre><code class="example">var obj = {
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name: "John",
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test: function() {
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alert( this.name );
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$("#test").unbind("click", obj.test);
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}
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};
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$("#test").click( jQuery.proxy( obj, "test" ) );
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// This also works:
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// $("#test").click( jQuery.proxy( obj.test, obj ) );</code></pre>
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</div></div>
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</div>
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</div>
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</div>
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</body></html> |