React全家桶环境搭建过程

摘要：环境搭建从零开始搭建开发环境引入安装依赖新建修改引入并支持安装依赖打包时将样式模块化，我们可以通过或引入样式，并且相互不冲突。修改，引入创建使用语法报错修改引入状态管理使用装饰器语法修改修改源码

1.从零开始搭建webpack+react开发环境

2.引入Typescript

安装依赖

npm i -S @types/react @types/react-dom
npm i -D typescript awesome-typescript-loader source-map-loader

新建tsconfig.json

{
    "compilerOptions": {
        "outDir": "./dist/",
        "sourceMap": true,
        "noImplicitAny": true,
        "module": "commonjs",
        "target": "es5",
        "jsx": "react"
    },
    "include": [
        "./src/**/*"
    ]
}

修改webpack.config.js

// webpack.config.js
const path = require("path");
const HtmlWebpackPlugin = require("html-webpack-plugin");
const webpack = require("webpack");


module.exports = {
    entry: {
        index:"./src/index.js",
    },
    output: {
        filename: "bundle.js",
        path: path.resolve(__dirname, "dist")
    },
    devtool: "source-map",
    // Add ".ts" and ".tsx" as resolvable extensions.
    resolve: {
        extensions: [".ts", ".tsx", ".js", ".jsx"]
    },
    module: {
        rules: [
            {
                test: /.css$/,
                use: ["style-loader", "css-loader"]
            },
            {
                test: /.(png|svg|jpg|gif)$/,
                use: ["url-loader"]
            },
            {
                test: /.(woff|woff2|eot|ttf|otf)$/,
                use: ["url-loader"]
            },
            {
                test: /.(js|jsx)$/,
                exclude: /node_modules/,
                use: {
                    loader: "babel-loader"
                }
            },
            // All files with a ".ts" or ".tsx" extension will be handled by "awesome-typescript-loader".
            {
                test: /.tsx?$/,
                loader: "awesome-typescript-loader"
            },
        ]
    },
    plugins: [
        new HtmlWebpackPlugin({
            title: "production",
            template: "./index.html"
        }),
        new webpack.NamedModulesPlugin(),
        new webpack.HotModuleReplacementPlugin()
    ],
    devServer: {
        contentBase: "./dist",
        hot: true
    },
};

3.引入less并支持import less modules

安装依赖

npm i -D less less-loader
npm i -D typings-for-css-modules-loader

tips: typings-for-css-modules-loader

打包时将样式模块化，我们可以通过import或require引入样式，并且相互不冲突。

//demo.less -> demo.less.d.ts
//.demo{color:red;} -> export const demo: string;
import * as styles from "demo.less"
 

修改webpack.config.js

// webpack.config.js
const path = require("path");
const HtmlWebpackPlugin = require("html-webpack-plugin");
const webpack = require("webpack");


module.exports = {
    entry: {
        index:"./src/index.js",
    },
    output: {
        filename: "bundle.js",
        path: path.resolve(__dirname, "dist")
    },
    devtool: "source-map",
    //add .less
    resolve: {
        extensions: [".ts", ".tsx", ".js", ".jsx", ".less", ".css"]
    },
    module: {
        rules: [
            {
                test: /.css$/,
                use: ["style-loader", "css-loader"]
            },
            //import less modules，name：demo__demo___hash
            {
                test: /.less/,
                use: [
                    "style-loader",
                    "typings-for-css-modules-loader?modules&importLoaders=1&localIdentName=[name]__[local]___[hash:base64:5]&namedExport&camelCase&less!less-loader"
                ]
            },
            {
                test: /.(png|svg|jpg|gif)$/,
                use: ["url-loader"]
            },
            {
                test: /.(woff|woff2|eot|ttf|otf)$/,
                use: ["url-loader"]
            },
            {
                test: /.(js|jsx)$/,
                exclude: /node_modules/,
                use: {
                    loader: "babel-loader"
                }
            },
            {
                test: /.tsx?$/,
                loader: "awesome-typescript-loader"
            },
        ]
    },
    plugins: [
        new HtmlWebpackPlugin({
            title: "production",
            template: "./index.html"
        }),
        new webpack.NamedModulesPlugin(),
        new webpack.HotModuleReplacementPlugin()
    ],
    devServer: {
        contentBase: "./dist",
        hot: true
    },
};

4.引入react-routerv4

npm i -S react-router-dom

创建history

import { createHashHistory } from "history";
export default createHashHistory();

使用

import React from "react";
import ReactDom from "react-dom";
import * as styles from "./index.less";
import history from "./helpers/history";
import {Router, Route, Switch, Redirect, Link} from "react-router-dom";
import Hello from "./router/Hello";
import TodoList from "./router/TodoList";


const PrivateRoute = ({ component: Component , ...rest}) => {
    return (
         (
            
        )}/>
    );
}


ReactDom.render(
    
        

            

                
Homes
                
TodoList
            
            
                
                {/**/}
                
            
        
    ,
    document.getElementById("root")
);

...ES7语法报错

npm i -S babel-preset-stage-2

修改.babelrc

{
  "presets": ["es2015", "react", "stage-2"],
}

5.引入mobx状态管理

npm i -S mobx mobx-react

使用装饰器语法

修改tsconfig.json

"compilerOptions": {
   "target":"es2017",  //fix mobx.d.ts error
   "experimentalDecorators": true,
   "allowJs": true
}

npm i -D babel-plugin-transform-decorators-legacy

修改.babelrc

{
  "presets": ["es2015", "react", "stage-2"],
  "plugins": ["transform-decorators-legacy"]
}

Github