function useState(x) {
  return [x, y => x = y];
}

function renderNative() {
  const [x, setX] = useState(0);
  return "<div>" + x + "</div>";
}

function renderTranspiled() {
  var _useState = useState(0),
    x = _useState[0],
    setX = _useState[1];
  return "<div>" + x + "</div>";
}

let strLength = 0;