return-early-pattern-for-functions.txt

// Setup
function abTest(a, b) {
  // Only change code below this line

if ( a < 0 || b < 0) {
  return undefined;
}

  // Only change code above this line

  return Math.round(Math.pow(Math.sqrt(a) + Math.sqrt(b), 2));
}

abTest(2,2);