TypeScript+React+webpack Demo

创建项目目录

项目目录

TypeScript文件会放在src文件夹里，通过TypeScript编译器编译，然后经webpack处理，最后生成一个bundle.js文件放在dist目录下。 我们自定义的组件将会放在 src/components文件夹下

初始化工程

npm init

安装依赖包

1. 首先，确保全局安装了webpack
   npm install -g webpack
2. 安装react相关
   npm install --save react react-dom @types/react @types/react-dom
3. 添加开发时依赖awesome-typescript-loader和source-map-loader
   npm install --save-dev typescript awesome-typescript-loader source-map-loader

添加TypeScript配置文件

项目根路径下增加tsconfig.json

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

Demo代码编写

1. src>component目录下添加greeter.tsx文件

import * as React from 'react';
export interface HelloProps {
    compiler: string;
    framework: string;
}
export class Hello extends React.Component {
    render() {
        return 
Hello from { this.props.compiler } and { this.props.framework } !
;
    }
}

2. src目录下添加index.tsx文件

import * as React from 'react';
import * as ReactDom from 'react-dom';

import { Hello } from './components/greeter';

ReactDom.render(
  ,
  document.getElementById('demo')
)

3. 增加一个页面展示组件，根目录下添加index.html文件

webpack配置

工程根目录下创建一个webpack.config.js

module.exports = {
  entry: "./src/index.tsx",
  output: {
    filename: "bundle.js",
    path: __dirname + "/dist"
  },

  // Enable sourcemaps for debugging webpack's output.
  devtool: "source-map",

  resolve: {
    // Add '.ts' and '.tsx' as resolvable extensions.
    extensions: [".ts", ".tsx", ".js", ".json"]
  },

  module: {
    rules: [
      // All files with a '.ts' or '.tsx' extension will be handled by 'awesome-typescript-loader'.
      { test: /\.tsx?$/, loader: "awesome-typescript-loader" },

      // All output '.js' files will have any sourcemaps re-processed by 'source-map-loader'.
      { enforce: "pre", test: /\.js$/, loader: "source-map-loader" }
    ]
  },

  // When importing a module whose path matches one of the following, just
  // assume a corresponding global variable exists and use that instead.
  // This is important because it allows us to avoid bundling all of our
  // dependencies, which allows browsers to cache those libraries between builds.
  externals: {
    "react": "React",
    "react-dom": "ReactDOM"
  },
};

构建命令添加

1. package.json中添加以下内容

...
"scripts": {
    "build": "webpack"
  },
...

2. 运行以下命令进行构建
   npm run build

3. 浏览器打开index.html查看效果

   
   
   效果图