const map = {
  throttle: {
    bind: function (el, obj) {
      let timerId = null
      let flag = true

      el.addEventListener('input', function () {
        if (!flag) return

        flag = false
        timerId && clearTimeout(timerId)
        timerId = setTimeout(function () {
          flag = true
          obj.value()
        }, 800)
      })
    }
  }
}


export default {
  install(Vue) {
    for (const key in map) {
      Vue.directive(key, map[key])
    }
  }
}