Function isUndo

codejar.ts:495–497

(event: KeyboardEvent)

  }

  function isUndo(event: KeyboardEvent) {
    return isCtrl(event) && !event.shiftKey && getKeyCode(event) === 'Z'
  }

  function isRedo(event: KeyboardEvent) {
    return isCtrl(event) && event.shiftKey && getKeyCode(event) === 'Z'