How to use the $.grep() utility function in jQuery to filter elements in an array
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>使用$.grep()工具函数筛选数组中的元素</title>
<script src="../lib/jquery-2.0.3.min.js" type="text/javascript"></script>
<style type="text/css">
body{font-size:13px}
p{margin:5px;padding:10px;border:solid 1px #666;background-color:#666;width:300px;}
</style>
<script type="text/javascript">
$(function(){
var strTmp = "筛选前数据";
var arrNum=[2,8,3,7,4,9,3,10,9,7,21];
var arrGet = $.grep(arrNum,function(ele,index){
return ele>5 && index<8;//元素值大于5且序号小于8
});
strTmp +=arrNum.join();
strTmp +="<br/><br/>筛选后数据:";
strTmp +=arrGet.join();
$("#pTip").append(strTmp);
})
</script>
</head>
<body>
<p id="pTip"></p>
</body>
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