JavaScript push () and splice () methods

JavaScript push () method definition and usage

The push () method adds one or more elements to the end of the array and returns the new length.

Grammar

Arrayobject.push (Newelement1,newelement2,...., newelementx)

Parameters	Description
Newelement1	Necessary. The first element to add to the array.
Newelement2	Optional. The second element to add to the array.
Newelementx	Optional. You can add multiple elements.

return value

Adds the specified value to the new length after the array.

Description

The push () method adds its parameter order to the tail of the arrayobject. It modifies the arrayobject directly, rather than creating a new array. The push () method and the Pop () method use the advanced post-stack functionality provided by the array.

JavaScript Splice () method 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.

JavaScript push () and splice () methods