Function hasModifierKey

src/cdk/keycodes/modifiers.ts:15–21

(event: KeyboardEvent, ...modifiers: ModifierKey[])

 * @param event Event to be checked.
 */
export function hasModifierKey(event: KeyboardEvent, ...modifiers: ModifierKey[]): boolean {
  if (modifiers.length) {
    return modifiers.some(modifier => event[modifier]);
  }

  return event.altKey || event.shiftKey || event.ctrlKey || event.metaKey;
}