Splice JavaScript Array Object

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.

Grammar

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