Question

How to add multiple elements at the beginning of an array in JavaScript

Answer 1

let arr = [7, 8, 5, 4, 3];

arr.unshift(0, 1, 2); 

console.log(arr); 

  
    
    
/*
run:
    
[0, 1, 2, 7, 8, 5, 4, 3]
    
*/

 

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Answer 2

let arr = ["C", "C++", "JavaScript", "Java"];
   
arr.unshift("TypeScript", "C#", "Node.js");
  
console.log(arr);

 
 
  
/*
run:
 
[ 'TypeScript', 'C#', 'Node.js', 'C', 'C++', 'JavaScript', 'Java' ]
   
*/
  

 

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