ts+webpack5开发环境搭建

1. 初始化，生成package.json

npm init -y

2. 安装typescript

npm install typescript ts-loader tslint --save-dev

3. 初始化tsconfig.json

./node_modules/typescript/bin/tsc --init

4. 添加webpack依赖

npm install webpack webpack-cli webpack-dev-server --save-dev

6. 安装webpack插件

npm i clean-webpack-plugin -D

npm install clean-webpack-plugin -D

7. 配置webpack配置文件

const htmlWebpackPlugin = require(html-webpack-plugin)
const {CleanWebpackPlugin} = require(clean-webpack-plugin)

const path = require(path) 

module.exports = {
    entry: "./src/index.ts",
    output: {
        filename: "./main.js",
        path: path.resolve(process.cwd(), dist),
    },

    resolve: {
        extensions: [.js, .ts, .tsx]
    },

    module: {
        rules: [{
            test: /.tsx?$/,
            use: ts-loader,
            exclude: /node_modules/
        }]
    },
    devtool: "inline-source-map",

    devServer: {
        static: {
            directory: path.join(__dirname, dist),
        },
        compress: false, 
        host: localhost, 
        port: 3000,
    },
    mode: development,
    plugins: [
        new CleanWebpackPlugin(),
        new htmlWebpackPlugin({
            template: ./src/template/index.html
        })
    ]

}

8. 配置package.json文件，设置build、start命令

{
  "name": "learntype",
  "version": "1.0.0",
  "description": "",
  "main": "src/index.ts",
  "scripts": {
    "start": "node_modules/webpack-dev-server/bin/webpack-dev-server.js --config ./build/webpack.config.js",
    "build": "node_modules/webpack/bin/webpack.js --config ./build/webpack.config.js",
    "test": "echo "Error: no test specified" && exit 1"
  },
  "keywords": [],
  "author": "",
  "license": "ISC",
  "devDependencies": {
    "clean-webpack-plugin": "^4.0.0",
    "html-webpack-plugin": "^5.5.0",
    "ts-loader": "^9.4.1",
    "tslint": "^6.1.3",
    "typescript": "^4.8.4",
    "webpack": "^5.74.0",
    "webpack-cli": "^4.10.0",
    "webpack-dev-server": "^4.11.1"
  }
}

最后使用npm start即可启动项目！