Example of usage of [attribute^=value] selector in jQuery

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Example of usage of [attribute^=value] selector in jQuery_jquery

May 16, 2016 pm 04:22 PM

jquery usage Selector

The example in this article describes the usage of the [attribute^=value] selector in jQuery. Share it with everyone for your reference. The specific analysis is as follows:

This selector can select elements whose attribute values start with certain values.

Grammar structure:

Copy code The code is as follows:

$("[attribute^=value]")

Parameter list:

参数	描述
attribute	属性名称。
value	元素数属性开始的值。引号在大多数情况下是可选的。但在遇到诸如属性值包含"]"时，用以避免冲突。

Example code:

Example 1:

Copy code The code is as follows:

<!DOCTYPE html>

<html>

<head>

<meta charset=" utf-8">

<meta name="author" content="http://www.jb51.net/" />

<title>Script Home</title>

<script type="text/javascript" src="mytest/jQuery/jquery-1.8.3.js"></script>

<script type="text/javascript"> 

$(document).ready(function(){ 

$("button").click(function(){ 

$("li[id^=s]").css("color","blue"); 

})

})

</script>

</head>

<body>

<ul>

<li id="first">html area</li>

<li id="second" title="jquery">Jquery area</li>

</ul>

<ul>

<li id="third">Welcome to the Script House</li>

<li>Script House welcomes you</li>

</ul>

<button>Click to see the effect</button>

</body>

</html>

The above code can set the text color of the li element whose id attribute value starts with s in the li element to blue.

Example 2:

Copy code The code is as follows:

<!DOCTYPE html>

<html>

<head>

<meta charset=" utf-8">

<meta name="author" content="http://www.jb51.net/" />

<title>Script Home</title>

<script type="text/javascript" src="mytest/jQuery/jquery-1.8.3.js"></script>

<script type="text/javascript"> 

$(document).ready(function(){ 

$("button").click(function(){ 

$("li[id^=[s]").css("color","blue"); 

}); 

}); 

</script>

</head>

<body>

<ul>

<li id="first">html area</li>

<li id="[second" title="jquery">Jquery Zone</li>

</ul>

<ul>

<li id="third">Welcome to the Script House</li>

<li>Script House welcomes you</li>

</ul>

<button>Click to see the effect</button>

</body>

</html>

From the above code, you can see how when the code contains "[" or "]", it must be enclosed in quotation marks, otherwise it will cause a matching error.

I hope this article will be helpful to everyone’s jQuery programming.

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