1342.Number_of_Steps_to_Reduce_a_Number_to_Zero.js

/**
 * @param {number} num
 * @return {number}
 */
var numberOfSteps = function (num) {
  let count = 0;
  while (num !== 0) {
    if (num % 2 === 0) {
      num = num / 2;
    } else if (num % 2 === 1) {
      num = num - 1;
    }
    count++;
  }
  return count;
};