Question

How to declare an empty array in Node.js

Answer 1

let arr = []; 
   
for (let i = 0; i < 4; i++) {
    console.log(arr[i]);
}
  
  
      
/*
run:
  
undefined
undefined
undefined
undefined

*/

 

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Answer 2

let arr = []; 
   
console.log(arr.length);
  
  
      
/*
run:
  
0

*/

 

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