Answers for "array push from front"

javascript array add front

// example:
let yourArray = [2, 3, 4];
yourArray.unshift(1); // yourArray = [1, 2, 3, 4]

// syntax:
// <array-name>.unshift(<value-to-add>);

insert element at beginning of array javascript

// Use unshift method if you don't mind mutating issue
// If you want to avoid mutating issue
const array = [3, 2, 1]

const newFirstElement = 4

const newArray = [newFirstElement].concat(array) // [ 4, 3, 2, 1 ]

console.log(newArray);