JavaScript 去掉数组中的重复元素[转]

时间：2010-08-11 来源：wlhgbs2008

Js代码1 function unique(data)
2 {
3     data = data || [];
4     var a = {};
5     for (var i = 0, len = data.length; i < len; i++)
6     {
7         var v = data[i];
8         if ('undefined' == typeof(a[v]))
9         {
10             a[v] = 1;
11         }
12     };
13     data.length = 0;
14     for (var i in a)
15     {
16         data[data.length] = i;
17     }
18
19     return data;
20 }

参考 $.cookie(); 搞成 jQuery 插件

10 jQuery.unique_array = function(data)
11 {
12     data = data || [];
13     var a = {};
14     for (var i = 0, len = data.length; i < len; i++)
15     {
16         var v = data[i];
17         if ('undefined' == typeof(a[v]))
18         {
19             a[v] = 1;
20         }
21     }
22
23     data.length = 0;
24     for (var i in a)
25     {
26         data[data.length] = i;
27     }
28
29     return data;
30 }

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