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@jikeytang
Created July 24, 2014 15:29
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[ Javascript ] - 20140725-题目1
数组arr1和arr2,长度都不固定,如何从arr1中删除和arr2中重复值的元素。
如:var arr1 = [1,3,4,6,7];
var arr2 = [3,4,7];
===>
var arr3 = [1,6]
PS:
1. 回复时注意加上下面这句话,才会有语法高亮或格式缩进。
```javascript
// you code
```
2. 粘贴代码时请使用shift+tab,缩进前面的空白。
@rambo-panda
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// 难道大婶们都不喜欢 用object key的方法呢?
//  还要考虑 type吧?

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