vue2添加自定义节流指令

新建Throttle.js

import Vue from 'vue'
Vue.directive('throttle', {
  inserted(el, binding ) {
    let throttleTime = binding.value // 防抖时间
    if (!throttleTime) { // 用户若不设置防抖时间，则默认1s
      throttleTime = 1000
    }
    let timer
    let disable = false
    el.addEventListener('click', event => {
      if (timer) {
        clearTimeout(timer)
      }
      if (!disable) { // 第一次执行(一点击触发当前事件)
        disable = true
      } else {
        event && event.stopImmediatePropagation()
      }
      timer = setTimeout(() => {
        timer = null
        disable = false
      }, throttleTime)
    }, true)
  }
})
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main.js引入

import "@/utils/Throttle.js"
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使用

<a-button v-throttle >a-button>
<a-button v-throttle='2000' >a-button>
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