不久前写了一篇webpack 4 升级迁移 这里简单说下 React 项目的一些配置;
首先我们新建项目 react-web ,然后进入项目初始化 package.json ;
cd react-web && npm init
接下来我们安装 webpack ,这里需要注意一点,是命令行已经单独提取出来了,我们不仅需要安装 webpack 还需要安装 webpack-cli 。
npm i webpack webpack-cli --save-dev
接下来我们开始安装和 react 相关的依赖包;
npm i @babel/core babel-loader @babel/preset-env @babel/preset-react --save-dev
接下来我们初始化 babel 的配置文件。
touch .babelrc
然后把下面内容粘贴进去;
{ "presets": ["@babel/preset-env", "@babel/preset-react"] }
实际上 webpack 4 是可以支持无配置构建的,但是我们还是按照传统的方式写一下配置文件;我们新建 webpack.config.js
module.exports = { module: { rules: [ { test: /\.js$/, exclude: /node_modules/, use: { loader: "babel-loader" } } ] } };
接下来我们开始 做点和 React 组件相关的东西;
npm i react-dom react prop-types --save-dev
我们在 src 下新建目录 components ;
我们建立一个 Header.js 和 Footer.js .
Footer.js
import React, { Component } from "react"; class Footer extends Component { constructor() { super(); this.state = { year: "2018" }; } render() { return ( <footer class="ft"> copyright © {this.state.year} </footer> ); } } export default Footer;
Header.js
import React, { Component } from "react"; import ReactDOM from "react-dom"; class Header extends Component { constructor() { super(); this.state = { year: "2018" }; } render() { return ( <header class="hd"> <a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >Logo</a> <ul class="pull-right"> <li><a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >Home</a></li> <li><a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >Link1</a></li> <li><a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >Link2</a></li> </ul> </header> ); } } export default Header;
然后我们新增文件 src/index.js
import React, { Component } from "react"; import ReactDOM from "react-dom"; import Header from "../src/components/Header"; import Footer from "../src/components/Footer"; class ReactApp extends Component { constructor() { super(); } render() { return ( <div class="main"> <Header></Header> <Footer></Footer> </div> ); } } ReactDOM.render(<ReactApp />, document.getElementById('react-app')); export default ReactApp;
接下来我们需要预览页面,我们引入下 html-loader
npm i html-webpack-plugin html-loader --save-dev
修改我们的 webpack 配置:
const HtmlWebPackPlugin = require("html-webpack-plugin"); module.exports = { module: { rules: [ { test: /\.js$/, exclude: /node_modules/, use: { loader: "babel-loader" } }, { test: /\.html$/, use: [ { loader: "html-loader" } ] } ] }, plugins: [ new HtmlWebPackPlugin({ template: "./src/index.html", filename: "./index.html" }) ] };
我们在 src 下新建 index.html 然后添加下面的内容:
<!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8"> <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-beta.2/css/bootstrap.min.css" rel="external nofollow" > <title>React & Webpack4</title> </head> <body> <div class="container"> <div class="row mt-5"> <div class="col-md-4 offset-md-1"> <p>Create a new article</p> <div id="react-app"> </div> </div> </div> </div> </body> </html>
接下来我们安装 webpack-dev-server 在开发时用于起一个服务器预览;
npm i webpack-dev-server --save-dev
接下来修改 npm scripts:
"scripts": { "start": "webpack-dev-server --open --mode development", "build": "webpack" }
差不多已经完成一部分了,后面你就可以再安装其他 react 套件了;
当然如果觉得麻烦你也可以使用 yarn-react-webpack-seed 。
扩展阅读
https://www.valentinog.com/blog/react-webpack-babel/
https://reacttraining.com/react-router/web/api/HashRouter
https://github.com/JackPu/yarn-react-webpack-seed
以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持三水点靠木。
React 项目迁移 Webpack Babel7的实现
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jackpu声明:登载此文出于传递更多信息之目的,并不意味着赞同其观点或证实其描述。
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