React 是什么？
解释不了
开发环境的搭建
安装 nodejs
https://www.php.cn/js-tutorial-414607.html
使用脚手架
create-react-app 就是官方推荐的脚手架
$ sudo npm install -g create-react-app
$ create-react-app chaos
$ cd chaos
$ npm staret
使用浏览器访问 http://localhost:3000 就可以了.
常见的命令
## 安装 redux
$ npm install redux --save
##弹出配置文件，用以自定义配置 webpack
$ npm run eject
照着脚手架手敲
index.html
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
</head>
<body>
<div id="root"></div>
</body>
</html>
index.js
import React from 'react';
import ReactDOM from 'react-dom';
import './index.css';
import App from './App'
import * as serviceWorker from './serviceWorker';
ReaceDOM.render(<App />, document.getElementById("root"));
serviceWorker.unregister();
App.js
import React from 'react';
imporet { createStore } from 'redux';
import {counter, addOne} form ./index.redux.js'
const store = createStore(counter);
class Hone extends React.Component {
constructor(props) {
super(props);
console.log("LOG", "props =", props);
}
render() {
let store = this.props.store;
let num = store.getState() ;
return (
<div>
<h1>你们号!</h1>
<div>盒盒盒盒</div>
</div>
);
}
}
« EOF »
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