text: // https://www.freecodecamp.org/learn/javascript-algorithms-and-data-structures/basic-javascript/return-early-pattern-for-functions
  function abTest(a, b) {
      if (a < 0 || b < 0) {
        return;
      }
      return Math.round(Math.pow(Math.sqrt(a) + Math.sqrt(b), 2));
    }
    
    abTest(2,2);
  