string unshift javascript code example
Example 1: unshift method in javascript
var name = [ "john" ];
name.unshift( "charlie" );
name.unshift( "joseph", "Jane" );
console.log(name);
[" joseph "," Jane ", " charlie ", " john "]
Example 2: javascript unshift
let array = ["A", "B"];
let variable = "what you want to add";
array.unshift(variable);
console.log(array);
Example 3: insert element at beginning of array javascript
const array = [3, 2, 1]
const newFirstElement = 4
const newArray = [newFirstElement].concat(array)
console.log(newArray);
Example 4: unshift javascript
let twentyThree = 'XXIII';
let romanNumerals = ['XXI', 'XXII'];
romanNumerals.unshift('XIX', 'XX');
romanNumerals.push(twentyThree);