Merge Two Objects And Array To Object In JavaScript

How two merge two objects or transform an array into an object in JavaScript

Photo by Ludovic Migneault on Unsplash

Merge Two Objects

const bruno = {
sing: true,
song: 'Treasure'

const ratm = {
type: 'band',
song: 'Bombtrack'

const result = {...bruno, ...ratm};


// -> {sing: true, song: "Bombtrack", type: "band"}

Array To Object

// {name: string, genre: string}[]
const bands = [
name: 'Ratm',
genre: 'rock'
name: 'Bruno',
genre: 'Pop'
// {ratm: string, bruno: string}
const artists = bands.reduce(
(obj, item) => {
obj[] = item.genre;
return obj;


// {Ratm: "rock", Bruno: "Pop"}


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