nodejs + ts + nodemon + webpack 代码热更新

依赖：

npm i nodemon webpack webpack-cli ts-loader typescript

// webpack.config.js
import { default as webpack } from "webpack";
import nodeExternals from "webpack-node-externals";

const plugins = [
  new CleanWebpackPlugin({
    dangerouslyAllowCleanPatternsOutsideProject: true,
    dry: false,
  }),
];

export default {
  entry: path.resolve("./main.ts"),
  target: "node",
  mode: "development",
  externals: [nodeExternals()],
  output: {
    path: path.resolve("./dist"),
    environment: {
      arrowFunction: false,
    },
  },
  resolve: {
    extensions: [".ts", ".js"], 
  },
  module: {
    rules: [
      {
        test: /\.ts$/,
        use: "ts-loader",
        exclude: /node_modules/,
      },
    ],
  },
  plugins,
};

package.json:

{
  "name": "compose",
  "version": "1.0.0",
  "description": "",
  "directories": {
    "test": "test"
  },
  "scripts": {
    "dev": "start nodemon ./dist/main.js localhost:3000 && webpack --config ./webpack.config.js --watch"
  },
  "type": "module",
  "author": "",
  "license": "ISC",
  "dependencies": {
    //...
  },
  "devDependencies": {
        //...
  }
}

index.ts (后端代码)

console.log("hello")

开启监听：

npm run dev

后续修改index.ts 后端代码自动更新