conditional operator not supported about babel-plugin-tailcall-optimization HOT 6 CLOSED

function fact(n, acc = 1) {
	return n > 1 ? fact(n - 1, n * acc) : acc;
}

var fact = (n, acc = 1) => n > 1 ? fact(n - 1, n * acc) : acc;

var fact = function fact(n) {
  var acc = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 1;
  return n > 1 ? fact(n - 1, n * acc) : acc;
};

var fact = (n, acc = 1) => {
	if (n > 1) {
		return fact(n - 1, n * acc);
	}
	return acc;
};

var fact = function fact(n) {
	var acc = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 1;
	var _repeat = true;

	var _n, _acc;

	while (_repeat) {
		_repeat = false;

		if (n > 1) {
			_n = n - 1;
			_acc = n * acc;
			n = _n;
			acc = _acc;
			_repeat = true;
			continue;
		}
		return acc;
	}
};

const countJumps = (list, index, step) => {
  const value = list.get(index);

  if (value === undefined) return step;

  return countJumps(list.set(index, value + 1), index + value, step + 1);
};

const countJumpsTernary = (list, index, step) => {
  const value = list.get(index);

  return value === undefined
    ? step
    : countJumpsTernary(list.set(index, value + 1), index + value, step + 1);
};

const countJumps = (list, index, step) => {
  var _repeat3 = true;

  var _list3, _index3, _step3;

  while (_repeat3) {
    _repeat3 = false;

    const value = list.get(index);

    if (value === undefined) return step;

    _list3 = list.set(index, value + 1);
    _index3 = index + value;
    _step3 = step + 1;
    list = _list3;
    index = _index3;
    step = _step3;
    _repeat3 = true;
    continue;
  }
};

const countJumpsTernary = (list, index, step) => {
  const value = list.get(index);

  return value === undefined ? step : countJumpsTernary(list.set(index, value + 1), index + value, step + 1);
};