Lugo Labs

Add an item at the beginning of the array in JavaScript

To add an item at the beginning of the array use unshift (it returns the length of the new array):

js
var a = [1, 2];
a.unshift(3); => a: [3, 1, 2];
a.unshift(4, 5); => a: [4, 5, 3, 1, 2];