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                            ## 定義和用法
`splice()` 方法向/從數組中添加/刪除項目，然后`返回被刪除或被增加的項目`。

注釋：該方法會改變原始數組。


## 增加

![mark](http://qiniu.newthink.cc/blog/20171218-150106280.png)


## 刪除

![mark](http://qiniu.newthink.cc/blog/20171218-145944967.png)



## 和concat一起用

![mark](http://qiniu.newthink.cc/blog/20171218-152746550.png)
                    
                
        
                
            
        
                
    
                
    
                
        
                
    
                

                







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