redux源码解读

 // 绑定reducer和state的关系
 import createStore from './createStore'
 // 导出警告函数
 import warning from './utils/warning'
 // 导出自动绑定函数 自动绑定函数,主要生成dispatch(actionCreator(action));
 import bindActionCreators from './bindActionCreators'
 // 导出应用中间件函数,中间件主要作用是将发往reducer的action进行多次修改
 import applyMiddleware from './applyMiddleware'
 /* 合并多个reducer,这样方便每个reducer只处理store的某一个部分数据,最后通过
 * combineReducers函数合并
 */
 import combineReducers from './combineReducers'
 // 将多个函数合并在一起
 import compose from './compose'
 

 function isCrushed() {}
 if (process.env.NODE_ENV !== 'production' && typeof isCrushed.name === 'string' 
 && isCrushed.name !=='isCrushed') {
 warning(
 'You are currently using minified code outside of NODE_ENV === \'production\'. ' +
 'This means that you are running a slower development build of Redux. ' +
 'You can use loose-envify (https://github.com/zertosh/loose-envify) for browserify ' +
 'or DefinePlugin for webpack (http://stackoverflow.com/questions/30030031) ' +
 'to ensure you have the correct code for your production build.'
 )
 }
 

 export {
 createStore,
 compose,
 warning,
 combineReducers,
 bindActionCreators
 }
 

 // 导出warning函数
 export default function warning(message) {
 // 判断console.error函数是否存在且可用
 if (typeof console !== 'undefined' && typeof console.error == 'function') {
 console.error(message);
 }
 }
 

 try {
 // 抛出异常
 throw new Error(Message)
 } catch(e) {
 // 捕获异常
 }