Question

How to merge two objects in JavaScript ES6

Answer 1

const obj1 = {1: 'Node.js', 2: 'JavaScript'}; 
const obj2 = {3 : 'ES6', 4: 'C++', 5: 'PHP'}; 

Object.assign(obj1, obj2); 
      
for (let key of Object.keys(obj1)) { 
    console.log(`${key} - ${obj1[key]}`); 
} 
  
  
  
       
/*
run:
     
1 - Node.js
2 - JavaScript
3 - ES6
4 - C++
5 - PHP
   
*/

 

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Answer 2

const obj1 = {1: 'Node.js', 2: 'JavaScript'}; 
const obj2 = {3 : 'ES6', 4: 'C++', 5: 'PHP'}; 

const obj =  {...obj1, ...obj2}; 
      
for (let key of Object.keys(obj)) { 
    console.log(`${key} - ${obj[key]}`); 
} 
  
  
  
       
/*
run:
     
1 - Node.js
2 - JavaScript
3 - ES6
4 - C++
5 - PHP
   
*/

 

70+ SQL courses for beginners and professionals