对于遍历一个数组,用$.each()来处理,简直爽到了极点。例如:
$.each([{“name”:”limeng”,”email”:”xfjylimeng”},{“name”:”hehe”,”email”:”xfjylimeng”},function(i,n)
{
alert(“索引:”+i,”对应值为:”+n.name);
});
参数i为遍历索引值,n为当前的遍历对象.
var arr1 = [ “one”, “two”, “three”, “four”, “five” ];
$.each(arr1, function(){
alert(this);
});
输出:one two three four five
var arr2 = [[1, 2, 3], [4, 5, 6], [7, 8, 9]]
$.each(arr2, function(i, item){
alert(item[0]);
});
输出:1 4 7
var obj = { one:1, two:2, three:3, four:4, five:5 };
$.each(obj, function(key, val) {
alert(obj[key]);
});
输出:1 2 3 4 5
在jQuery里有一个each方法,用起来非常的爽,不用再像原来那样写for循环,jQuery源码里自己也有很多用到each方法。