th_net_hospital_ali_mp/antbuilder/industry/abMall/utils/eventEmitter.js

/* eslint-disable */
function EventEmitter() {
  this.eventMap = {};
}

EventEmitter.prototype = {
  dispatchEvent: function dispatchEvent(name, payload) {
    const fns = this.eventMap[name] = this.eventMap[name] || [];

    if (fns && fns.length) {
      fns.forEach(fn => fn(payload));
    }
  },
  addEventListener: function addEventListener(name, callback) {
    const callbacks = this.eventMap[name] = this.eventMap[name] || [];

    if (callbacks.indexOf(callback) === -1) {
      callbacks.push(callback);
    }
  },
  removeEventListener: function removeEventListener(name, callback) {
    const callbacks = this.eventMap[name] = this.eventMap[name] || [];

    if (callbacks.indexOf(callback) !== -1) {
      this.eventMap[name] = callbacks.filter(d => d !== callback);
    }
  }
};
const EventHub = new EventEmitter();
export default EventHub;