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The Jquery index () method gets the corresponding element index value _jquery

Source: Internet
Author: User
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index ([subject]) method, return value: Number (counting starting from 0)
The index () method returns the index position of the specified element relative to the other specified element. Note: If an element is not found, index () returns-1.
Copy Code code as follows:

<script type= "Text/javascript" src= "Http://lib.sinaapp.com/js/jquery/1.4.2/jquery.min.js" ></script>
<script type= "Text/javascript" >
$ (document). Ready (function () {
$ ("button"). Click (function () {
Alert ($ (". Hot"). Index ($ ("#favorite"));
});
});
</script>
<body>
Please click on the button below to get the index of the element id= "favorite" relative to the JQuery selector (class= "hot"):
<button> Get index</button>
<ul>
<li>Milk</li>
<li class= "Hot" >Tea</li>
<li class= "Hot" id= "favorite" >Coffee</li>
</ul>
</body>

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Related Keywords:
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