Question

How to convert int to binary with leading zeros in JavaScript

Answer 1

const a = 7;
          
console.log("0000".substr(a.toString(2).length) + a.toString(2));

const b = 56;
const binary = b.toString(2);
console.log("00000000".substr(binary.length) + binary);

 
  
  
  
/*
run:
   
"0111"
"00111000"
   
*/

 

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