app.js
App({ handlerGather:{}, onLaunch: function () { const _that = this wx.$on = function (event, fn) { if (Array.isArray(event)) { event.forEach(item=>{ wx.$on(item, fn) }) } else { ( _that.handlerGather[event] || (_that.handlerGather[event] = [] ) ).push(fn) } return wx } wx.$emit = function (event, data) { const fn = (ev, d)=>{ let len = _that.handlerGather[ev].length for (let i = 0; i < len; i++) { const ele = _that.handlerGather[ev][i]; ele(d) } } if (Array.isArray(event)) { event.forEach(item=>{ fn(item,data) }) } else { fn(event,data) } return wx } wx.$off = function (event) { if (!_that.handlerGather[event]) return if (Array.isArray(event)) { event.forEach(item=>{ if (_that.handlerGather[event]) { _that.handlerGather[event] = [] } }) } else{ _that.handlerGather[event] = [] } return wx } } })
页面js 使用
onLoad() { wx.$on("test",(data)=>{ console.log('test', data) }) setTimeout(()=>{ wx.$emit("test", "11111") },2000) }, onUnload() { wx.$off("test") },
标签:handlerGather,自定义,event,item,off,data,emit,fn,wx From: https://www.cnblogs.com/luyaru/p/17411244.html