off (events, el, capture = false) {
    if (isString(events)) {
      events = [events]
    }

    for (let i = 0; i < events.length; i++) {
      el.removeEventListener(events[i], this.listeners[events[i]], capture)
    }
  }
Removes event listeners from arrows HTML elements.

@param  {String|Array} events
@param  {Element|Window|Document} el
@param  {Boolean|Object} capture
@return {Void}