export interface QfClassFunc {
  (element: Element, event: Event, fn: Function): void
}

export interface QfEventHandler {
  (element: Element | Document, event: string, handler: Function): void
}

export interface DomUtil {
  addClass: QfClassFunc
  removeClass: QfClassFunc
  hasClass: QfClassFunc
  on: QfEventHandler,
  off: QfEventHandler
}