javascript array shift unshift code example
Example 1: javascript add new array element to start of array
var colors = ["white","blue"];
colors.unshift("red");
Example 2: unshift method in javascript
var name = [ "john" ];
name.unshift( "charlie" );
name.unshift( "joseph", "Jane" );
console.log(name);
[" joseph "," Jane ", " charlie ", " john "]
Example 3: prepend to js array
var a = [1, 2, 3, 4];
a.unshift(0);
a;
Example 4: unshift javascript
let twentyThree = 'XXIII';
let romanNumerals = ['XXI', 'XXII'];
romanNumerals.unshift('XIX', 'XX');
romanNumerals.push(twentyThree);