

这个警告其实是在组件卸载的时候执行了setState,虽然这个警告并不影响正常使用,但是看着总是不爽,所以我们要在组件卸载的时候结束setState,如下:
componentWillUnmount(){
this.setState = (state,callback)=>{
return
}
}
四:完整版asyncComponent.js
import React, { Component } from "react";
export default function asyncComponent(importComponent) {
class AsyncComponent extends Component {
constructor(props) {
super(props);
this.state = {
component: null
};
}
async componentDidMount() {
if(this.hasLoadedComponent()){
return;
}
const { default: component } = await importComponent();
this.setState({
component: component
});
}
hasLoadedComponent() {
return this.state.component !== null;
}
componentWillUnmount(){
this.setState = (state,callback)=>{
return
}
}
render() {
const C = this.state.component;
return C ? <C {...this.props} /> : null;
}
}
return AsyncComponent;
}五: webpack部分配置需要配置chunkFilename
eturn {
output: {
path: path.resolve(CWD, config.build),
publicPath: config.static[process.env.MODE],
chunkFilename: 'js/[name]-[chunkhash:8].js',
filename: 'js/[name].js',
},
结尾推广一下我的react-native开源项目:https://github.com/duheng/Mozi
