Splice JavaScript Array Object

Source: Internet
Author: User
Tags javascript array

Definition and usage

The splice () method adds/deletes an item to/from the array, and then returns the item that was deleted.

Note: This method changes the original array.

Arrayobject.splice (index,howmany,item1,....., ItemX)
Parameters Description
Index Necessary. An integer that specifies the location of the Add/remove item, using a negative number to specify the position from the end of the array.
Howmany Necessary. The number of items to delete. If set to 0, the item is not deleted.
Item1, ..., ItemX Optional. Adds a new item to the array.

return value
type Description
Array A new array containing the deleted items, if any.

var a = [1, 2, 3, 4, 5, 6, 7, 8]

A.splice (5,0, ' AAA ')

[1, 2, 3, 4, 5, "AAA", 6, 7, 8]

Splice JavaScript Array Object

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