insert element at first index javascript code example
Example 1: javascript add new array element to start of array
var colors = ["white","blue"];
colors.unshift("red");
Example 2: js add element to front of array
var numbers = ["2", "3", "4", "5"];
numbers.unshift("1");
Example 3: unshift method in javascript
var name = [ "john" ];
name.unshift( "charlie" );
name.unshift( "joseph", "Jane" );
console.log(name);
[" joseph "," Jane ", " charlie ", " john "]
Example 4: insert element at beginning of array javascript
const array = [3, 2, 1]
const newFirstElement = 4
const newArray = [newFirstElement].concat(array)
console.log(newArray);