JavaScript Array splice()

At position 2, add 2 elements:

const fruits = ["Banana", "Orange", "Apple", "Mango"];

fruits.splice(2, 0, "Lemon", "Kiwi");

At position 2, remove 2 items:

const fruits = ["Banana", "Orange", "Apple", "Mango", "Kiwi"];
fruits.splice(2, 2);

Description

The splice() method adds and/or removes array elements.

The splice() method overwrites the original array.

array.splice(index, howmany, item1, ....., itemX)

Parameter	Description
index	Required. The index (position) to add or remove items. A negative value counts from the end of the array.
howmany	Optional. Number of items to be removed.
item1, ..., itemX	Optional. New elements(s) to be added.

An array containing the removed items (if any).

At position 2, add new items, and remove 1 item:

const fruits = ["Banana", "Orange", "Apple", "Mango"];
fruits.splice(2, 1, "Lemon", "Kiwi");

splice() is an ECMAScript1 (ES1) feature.

ES1 (JavaScript 1997) is fully supported in all browsers:


Chrome	Edge	Firefox	Safari	Opera	IE
Yes	Yes	Yes	Yes	Yes	Yes