TypeScript 反應 webpack

全域性安裝 TypeScript，打字和 webpack

npm install -g typescript typings webpack

安裝載入器和連結 TypeScript

npm install --save-dev ts-loader source-map-loader npm link typescript

連結 TypeScript 允許 ts-loader 使用 TypeScript 的全域性安裝，而不需要單獨的本地副本TypeScript 文件

使用 typescript 2.x 安裝 .d.ts 檔案

npm i @types/react --save-dev
npm i @types/react-dom --save-dev

使用 typescript 1.x 安裝 .d.ts 檔案

typings install --global --save dt~react
typings install --global --save dt~react-dom

tsconfig.json 配置檔案

{
  "compilerOptions": {
    "sourceMap": true,
    "noImplicitAny": true,
    "module": "commonjs",
    "target": "es5",
    "jsx": "react"
  }
}

webpack.config.js 配置檔案

module.exports = {
    entry: "<path to entry point>",// for example ./src/helloMessage.tsx
    output: {
        filename: "<path to bundle file>", // for example ./dist/bundle.js
    },

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

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

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

        preLoaders: [
            // All output '.js' files will have any sourcemaps re-processed by 'source-map-loader'.
            {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"
    },
};

最後執行 webpack 或 webpack -w（用於手錶模式）

注意 ：React 和 ReactDOM 標記為外部