PerformanceTests/SixSpeed/tests/defaults/defaults.es5

function fn(arg, other) {
  arg = arg === undefined ? 1 : arg;
  other = other === undefined ? 3 : other;
  return other;
}

assertEqual(fn(), 3);
assertEqual(fn(1, 2), 2);

test(function() {
  fn();
  fn(2);
  fn(2, 4);
});