【小程序】小程序的eventBus

小程序组件跨组件通讯没有比较好的方案，小程序原生的方法也不支持eventBus，只能自己开发一个

源码网上看了些，加gpt修改一下

var EventBus = function () {function EventBus() {this.events = {};}EventBus.prototype.on = function (eventName, callback) {if (!this.events[eventName]) {this.events[eventName] = [];}this.events[eventName].push(callback);};EventBus.prototype.emit = function (eventName) {var _this = this;var args = [];for (var _i = 1; _i < arguments.length; _i++) {args[_i - 1] = arguments[_i];}if (this.events[eventName]) {this.events[eventName].forEach(function (callback) {return callback.apply(_this, args);});}};EventBus.prototype.off = function (eventName, callback) {if (!callback) {this.events[eventName] = [];} else {this.events[eventName] = this.events[eventName].filter(function (cb) {return cb !== callback;});}};return EventBus;
}();module.exports = new EventBus();

调用

	import eventBus from ../utils/eventBus.js//监听eventBus.on('bus',(res)=>{console.log(res)})//发送eventBus.emit('bus','传参')//取消eventBus.off('bus')