jquery $.each() 使用小探
代码如下:
<html>
<head>
<title>
jquery each使用
</title>
<script type='text/javascript' src='jquery-1.8.2.min.js'></script>
<script type="text/javascript">
$(document).ready(function(){
//进行遍历一维数组
var arr1 = [ "aaa", "bbb", "ccc" ]; //同c语言不同时变量值使用[] 而不是{}
$.each(arr1, function(i,val){
alert(i+"前面是下标后面是值"+val);
});
//遍历二维数组
var arr2 = [['a', 'aa', 'aaa'], ['b', 'bb', 'bbb'], ['c', 'cc', 'ccc']];
$.each(arr2, function(i, item){
alert(i+"前面是下标后面是值"+item);
});
$.each(arr2, function(i, item){
$.each(item,function(j,val){
alert(j+"前面是下标后面是值"+val);
});
});
//循环遍历dom对象
$.each($("input:hidden"), function(i,val){
alert(val); //为dom对象
alert(i); //为下标0 1 2
alert(val.name);
alert(val.value);
});
//结果和上面一样
$("input:hidden").each(function(i,val){
alert(i);
alert(val);
alert(val.name);
alert(val.value);
});
});
</script>
</head>
<body>
<input name="aaa" type="hidden" value="111" />
<input name="bbb" type="hidden" value="222" />
<input name="ccc" type="hidden" value="333" />
<input name="ddd" type="hidden" value="444"/>
</body>
</html>
<html>
<head>
<title>
jquery each使用
</title>
<script type='text/javascript' src='jquery-1.8.2.min.js'></script>
<script type="text/javascript">
$(document).ready(function(){
//进行遍历一维数组
var arr1 = [ "aaa", "bbb", "ccc" ]; //同c语言不同时变量值使用[] 而不是{}
$.each(arr1, function(i,val){
alert(i+"前面是下标后面是值"+val);
});
//遍历二维数组
var arr2 = [['a', 'aa', 'aaa'], ['b', 'bb', 'bbb'], ['c', 'cc', 'ccc']];
$.each(arr2, function(i, item){
alert(i+"前面是下标后面是值"+item);
});
$.each(arr2, function(i, item){
$.each(item,function(j,val){
alert(j+"前面是下标后面是值"+val);
});
});
//循环遍历dom对象
$.each($("input:hidden"), function(i,val){
alert(val); //为dom对象
alert(i); //为下标0 1 2
alert(val.name);
alert(val.value);
});
//结果和上面一样
$("input:hidden").each(function(i,val){
alert(i);
alert(val);
alert(val.name);
alert(val.value);
});
});
</script>
</head>
<body>
<input name="aaa" type="hidden" value="111" />
<input name="bbb" type="hidden" value="222" />
<input name="ccc" type="hidden" value="333" />
<input name="ddd" type="hidden" value="444"/>
</body>
</html>
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