The examples in this article describe the usage of attr method and removeAttr method in JQuery. Share it with everyone for your reference. The details are as follows:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title></title>
<style type="text/css">
div{width:100px;margin:0px auto;border:1px solid red;}
</style>
<script src="jquery-1.6.2.min.js" type="text/javascript"></script>
<script type="text/javascript">
$(function () {
$("#btnChange").click(function () {
var $divs = $("div");
//----1.举例1
//$divs.eq(0).attr("MyAttr", "Ronaldo");
//eq返回指定下标的JQuery对象(注意:此时$divs中有两个div的dom元素)
//$divs.eq(1).attr("MyAttr", "Ronaldo1");
//alert($divs.attr("MyAttr"));
//读取MyAttr属性，注意，只会读取出第一个元素的该属性
//----2.举例2 使用JSon格式设置attr
//$divs.eq(0).attr({ "MyAttr": "Ronaldo", "Age": "19" });
//$divs.eq(1).attr({ "MyAttr": "Rivaldo", "Age": "29" });
//alert("MyAttr:" + $divs.eq(1).attr("MyAttr") + ",Age:" + $divs.eq(1).attr("Age"));
//----3.举例3 移除属性
$divs.eq(0).attr({ "MyAttr": "Ronaldo", "Age": "19" });
$divs.eq(1).attr({ "MyAttr": "Rivaldo", "Age": "29" });
alert("MyAttr:" + $divs.eq(1).attr("MyAttr") + ",Age:" + $divs.eq(1).attr("Age"));
$divs.eq(1).removeAttr("Age");
alert("MyAttr:" + $divs.eq(1).attr("MyAttr") + ",Age:" + $divs.eq(1).attr("Age"));
});
});
</script>
</head>
<body>
<input id="btnChange" type="button" value="Click Me" />
<div id="div1">我是div1</div>
<div id="div2">我是div2</div>
</body>
</html>I hope this article will be helpful to everyone’s jQuery programming.
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