numbers - How do I convert an integer to binary in JavaScript?

Question

I’d like to see integers, positive or negative, in binary.

Rather like this question, but for JavaScript.

Answer 1

function dec2bin(dec) {
  return (dec >>> 0).toString(2);
}

console.log(dec2bin(1)); // 1
console.log(dec2bin(-1)); // 11111111111111111111111111111111
console.log(dec2bin(256)); // 100000000
console.log(dec2bin(-256)); // 11111111111111111111111100000000