Question

How to clone array in JavaScript ES6

Answer 1

const arr = ["Node.js", "JavaScript", "C++"]; 
   
const clonedArr = [...arr]; 
   
console.log(clonedArr);   
  
  
       
/*
run:
     
[ 'Node.js', 'JavaScript', 'C++' ]
   
*/

 

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Answer 2

const arr = ["Node.js", "JavaScript", "C++"]; 
   
const clonedArr = [...arr]; 
console.log(clonedArr === arr);   

const newArr = arr; 
console.log(newArr === arr);   
  
  
       
/*
run:
     
false
true
   
*/

 

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