初始化一個react項目

時間 2019-11-09

原文原文鏈接

初始化一個react項目

mkdir init_react
cd init_react
npm init //若是沒有什麼特殊的配置一路回車，獲得package.json文件

目錄結構

dist ---------------------------------------------> //用於存放webpack打包以後的項目文件javascript

index.html ----------------------------------> //webpack打包以後的html文件css

main.hash值.bundle.js ---------------------> //webpack打包以後的js文件html

node_modules --------------------------------> //項目當中使用的第三方庫文件存放目錄前端

src ----------------------------------------------> //生產環境中代碼存放目錄java

index.html ----------------------------------> //前端統一的html模版文件node

index.js -------------------------------------> //項目的主入口文件react

index.less -----------------------------------> //項目中的樣式文件webpack

.babelrc ----------------------------------------> //babel的配置文件git

package.jses6

webpack.config.js -----------------------------> //webpack的配置文件

安裝webpack打包工具和webpack-dev-server服務器

npm install webapck --save
npm install webpack-dev-server --save

安裝react和react-dom

npm install react --save
npm install react-dom --save

安裝babel

npm install babel-preset-es2015 babel-preset-react babel-preset-stage-0 babel-polyfill babel-core --save-dev

建立.babelrc文件,配置babel 預處理

{
   "presets": ["es2015","react","stage-0"]
}

處理樣式須要安裝less

npm install less --save

安裝webpack 的 loader

npm install babel-loader style-loader css-loader less-loader --save-dev

安裝webpack插件

npm install extract-text-webpack-plugin html-webpack-plugin --save-dev

建立webpack.config.js文件

var path = require('path')
var webpack = require('webpack')
var ExtractTextPlugin = require('extract-text-webpack-plugin')  
var HtmlWebpackPlugin = require('html-webpack-plugin')

module.exports = {
    devtool:'eval', //source-map
    entry:{
        main:'./src/index.js'//入口文件
    },
    output:{
        path:path.join(__dirname, 'dist'),//出口文件
        filename: '[name].[hash:8].bundle.js'
    },
    resolve: {
        extensions: [' ', '.js','.jsx', '.json','.css','.less']
    },
    module:{
        rules: [{
            test: /\.less$/,//加載less樣式的loader
            use: ExtractTextPlugin.extract({
                fallback: "style-loader",
                use: ['css-loader', 'less-loader']
            })
        }, {
            test: /\.js?$/,//用於解析es6語法的babel-loader
            exclude: /node_modules/,
            use: 'babel-loader'
        }]
    },
    plugins: [
        new webpack.HotModuleReplacementPlugin(), //熱更新
        new webpack.NoEmitOnErrorsPlugin(), //錯誤不編譯
        new ExtractTextPlugin('style.css'), //css模塊獨立
        new HtmlWebpackPlugin({
                title: 'Redux Practive', //標題
                // favicon: './src/assets/img/favicon.ico', //favicon路徑
                filename: './index.html', //生成的html存放路徑，相對於 path
                template: './src/index.html', //html模板路徑
                inject: true, //容許插件修改哪些內容，包括head與body`
                minify: { //壓縮HTML文件
                    removeComments: true, //移除HTML中的註釋
                    collapseWhitespace: false //刪除空白符與換行符
                }
        })
     ]
}

修改package.json

{
  "name": "init_react",
  "version": "1.0.0",
  "description": "",
  "main": "index.js",
  "scripts": {
    "start": "webpack-dev-server --hot --inline --progress --colors --watch --compress --content-base ./dist  --port 8086 --host 0.0.0.0",
    "test": "echo \"Error: no test specified\" && exit 1"
  },
  "author": "",
  "license": "ISC",
  "dependencies": {
    "less": "^2.7.2",
    "react": "^15.6.1",
    "react-dom": "^15.6.1",
    "webpack": "^3.3.0",
    "webpack-dev-server": "^2.6.1"
  },
  "devDependencies": {
    "babel-core": "^6.25.0",
    "babel-loader": "^7.1.1",
    "babel-polyfill": "^6.23.0",
    "babel-preset-es2015": "^6.24.1",
    "babel-preset-react": "^6.24.1",
    "babel-preset-stage-0": "^6.24.1",
    "css-loader": "^0.28.4",
    "extract-text-webpack-plugin": "^3.0.0",
    "html-webpack-plugin": "^2.29.0",
    "less-loader": "^4.0.5",
    "style-loader": "^0.18.2"
  }
}

建立html模版文件

在項目的根目錄下建立src目錄並建立index.html

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Document</title>
</head>
<body>
    <div id="root"></div>
</body>
</html>

在src目錄下建立index.js

import React from 'react'
import ReactDOM from 'react-dom'
ReactDOM.render(
  <h1>Hello, world!</h1>,
  document.getElementById('root')
)

GitHub項目代碼地址

https://github.com/shuoer123/init_react

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