JAVASCRIPT

keydown event

document.addEventListener("keydown", function(e) {
	e = e || window.event;
	// Add scripts here
	e.keyCode; // -> returns the keycode of the key that triggered the event
	e.key.toString(); // -> returns the ASCII character of the key that triggered the event
});

keydown events

eventTarget.addEventListener("keydown", event => {
  if (event.isComposing || event.keyCode === 229) {
    return;
  }
  // do something
});