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react-demo

第一步:创建package.json文件,命令:npm init 基本配置文件: { "name": "react-demo”, // 项目名称 "version": "1.0.0”, // 项目版本号 "description": "react project", // 项目简介 "main": "index.js", // 主要入口文件 "scripts": { "start": "webpack-dev-server --hot --inline --colors", // 开发环境启动命令 "build": "webpack --progress --colors" // 发布环境命令 }, "author": "liuliu", // 作者
"license": "ISC" } 第二步:安装各种依赖 1.安装react 命令: npm i —save react 2.安装react-dom 命令:npm i —save react-dom 3.安装webpack 命令:npm i —save-dev webpack 4.webpack官网出的一个小型express服务器,主要特性是支持热加载 命令:npm install —save-dev webpack-dev-server
5.安装Babel,主要把ES6转换成ES5 命令:npm i —save-dev babel-core 6.webpack中要用的loader 命令:npm i —save-dev babel-loader 7.npm install —save babel-polyfill 8.npm inatall —save babel-runtime 9.npm install —save-dev babel-plugin-transform-runtime 10.npm install —save-dev babel-preset-es2015 11.npm install —save-dev babel-preset-stage-2

第三步:创建webpack.config.js文件

var webpack = require('webpack’); module.exports = { entry: './src/app.js’, // 打包的入口文件 output: { // 配置打包的结果 path: __dirname + '/build’, // 定义输出文件路径 filename: “index.js” // 定义输出文件名 }, module: { // 对模块的处理逻辑 rules: [{ // 定义一系列的加载器 test: /.js$/, // 用于匹配的文件 exclude: /node_modules/, // 排除的文件夹 loader: 'babel-loader’, // 制定模块加载器 query: { // 定义需要的插件 plugins: ['transform-runtime'], presets: ['es2015', 'react', 'stage-2'] } }, { test: /.css$/, loader: "style-loader!css-loader" }] } }

第四步:启动项目配置 在package.json中添加: "scripts": { "start": "webpack-dev-server --hot --inline --colors”, // 开发环境启动项目命令 "build": "webpack --progress —colors” // 发布项目执行命令 },

第五步:完整的package.json,后续还需要更多其他的依赖,比如:less,sass,gulp等 { "name": "react-demo", "version": "1.0.0", "description": "react project", "main": "index.js", "scripts": { "start": "webpack-dev-server --hot --inline --colors", "build": "webpack --progress --colors" }, "author": "xuelan.liu", "license": "ISC", "dependencies": { "babel-polyfill": "^6.26.0", "babel-runtime": "^6.26.0", "react": "^16.6.3", "react-dom": "^16.6.3" }, "devDependencies": { "babel-core": "^6.26.3", "babel-loader": "^7.1.5", "babel-plugin-transform-runtime": "^6.23.0", "babel-preset-es2015": "^6.24.1", "babel-preset-react": "^6.24.1", "babel-preset-stage-2": "^6.24.1", "webpack": "^4.26.0", "webpack-cli": "^3.1.2", "webpack-dev-server": "^3.1.10" } }

项目目录:

Build:打包后的目录 Src:项目源码目录 Components: 项目相关组件 App.js: 入口文件 Index.html: 项目入口页面

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