Question

How to initialize an array of boolean values in TypeScript

Answer 1

const arr = new Array(5).fill(false);

console.log(arr);
  
   
    
      
      
/*
run:
  
[false, false, false, false, false] 
      
*/

 

 

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Answer 2

const arr = new Array(5);

for (let i = 0; i < arr.length; i++) {
  	arr[i] = false;
}

console.log(arr);

   
    
      
      
/*
run:
  
[false, false, false, false, false] 
      
*/

 

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Answer 3

let arr: boolean[] = new Array(false, true, false, false);

console.log(arr);

   
    
      
      
/*
run:
  
[false, true, false, false] 
      
*/

 

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