#67 - Add Binary

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Problem Description

Given two binary strings, return their sum (also a binary string).

The input strings are both non-empty and contains only characters 1 or 0.

Solution

/**
 * @param {string} a
 * @param {string} b
 * @return {string}
 */
var addBinary = function(a, b) {
  return (BigInt('0b' + a) + BigInt('0b' + b)).toString(2);
};