react 中 EventEmitter 事件總線機制

此機制可用於 react 中兄弟組件中的通信

npm install events -S

事件總線：

// eventBus.js

import {EventEmitter} from 'events';
export default new EventEmitter();

監聽：

import Bus from './eventBus'

Bus.addListener('changeSiblingsData', (msg) => {
  this.setState({
    bus: msg,
  });
  console.log(msg);
});

觸發：

import Bus from './eventBus'

Bus.emit('changeSiblingsData', msg);