You would expect low level code to be very fast in a low level language because it runs directly on metal. But on a high level language low level code get's tra

You would expect low level code to be very fast in a low level language because it runs directly on metal. But on a high level language low level code get's translated into another code, so the code runs on the hardware is much more complicated. By using the high level features on Javascript actually leads to better optimized low level code.