Answers for "insert in the beginning js"

2

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);
Posted by: Guest on November-20-2020
1

Add an item to the beginning of an Array

let newLength = fruits.unshift('Strawberry') // add to the front
// ["Strawberry", "Banana"]
Posted by: Guest on July-02-2021

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