Add an item at the beginning of the array in JavaScript
September 30, 2014
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];