tsconfig.json

{
    "compilerOptions": {
        "target": "ESNext",
        "useDefineForClassFields": true,
        "lib": ["ESNext", "DOM"],
        "module": "NodeNext",
        "outDir": "out/server",
        "skipLibCheck": true,
        "removeComments": false,
        "allowJs": true,
        "declaration": true,

        /* Bundler mode */
        "moduleResolution": "NodeNext",
        "esModuleInterop": true,
        "allowImportingTsExtensions": false,
        "resolveJsonModule": true,
        "allowSyntheticDefaultImports": true,
        "isolatedModules": true,
        "noEmit": false,

        /* Linting */
        "strict": true,
        "noUnusedLocals": true,
        "noUnusedParameters": true,
        "noFallthroughCasesInSwitch": true,
        "noUncheckedIndexedAccess": true, // 通过下标获取元素，默认添加 undefined 类型
        "forceConsistentCasingInFileNames": true, // 必须配置，严格区分导入文件大侠写
        "noImplicitReturns": true, // 必须配置，若函数需要返回一个值，那么保证函数每个执行分支都存在返回值
        "noImplicitOverride": true, // 必须配置，对父类方法的覆盖，使用 override 关键字指明
        "exactOptionalPropertyTypes": false
    },
    "include": ["src"],
    "exclude": ["node_modules", "client"]
}