The get() method of the KeyboardLayoutMap interface returns the element with the given key.

A list of valid keys is found in the UI Events KeyboardEvent code Values spec.

key

The key of the item to return from the map.

The value of the specified key.

The following example demonstrates how to get the location- or layout-specific string associated with the key that corresponds to the 'W' key on an English QWERTY keyboard.

const keyboard = navigator.keyboard;
keyboard.getLayoutMap().then((keyboardLayoutMap) => {
  const upKey = keyboardLayoutMap.get("KeyW");
  window.alert(`Press ${upKey} to move up.`);
});