Answers for "add to the beginning of an array without using unshiftjavascript"

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);

Add an item to the beginning of an Array

let newLength = fruits.unshift('Strawberry') // add to the front
// ["Strawberry", "Banana"]