应用场景：多次点击提交按钮 首次提交执行，重复提交就会等待一定的时间提交执行

//util.js
export const debounce = (fn, wait) => {
    let delay = wait|| 500
    let timerout;
    return function () {
        let args = arguments;
        if (timerout) {
            clearTimeout(timer)
        }
        let callNow = !timerout;
        timerout = setTimeout(() => {
            timerout = null
        }, delay)
        if (callNow) fn.apply(this, args)
    }
}

//引用
import {  debounce  } from '@/env/util'

methods:{
	refresh:debounce(function(){
	//执行函数
		this.refreshTypes2('G');
	},3000)
}

总结

首次点击提交按钮会立即执行一次debounce方法，后面3s内不触发事件才能继续执行。这很适合防止表单重复提交！

链接: https://fly63.com/article/detial/8579