Question

How to add leading zeros to a number in TypeScript

Answer 1

function addLeadingZeros(num : number, len : number) : string {
  	return String(num).padStart(len, '0');
}

console.log(addLeadingZeros(6, 2)); 
console.log(addLeadingZeros(2, 3)); 
console.log(addLeadingZeros(1, 4)); 
console.log(addLeadingZeros(1000, 3)); 
  
  
  
  
/*
run:
  
"06" 
"002" 
"0001" 
"1000" 
  
*/

 

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