tsconfig.json

{
    "compilerOptions": {
        /* Parse in strict mode and emit "use strict" for each source file. */
        "alwaysStrict": true,

        /* List of library files to be included in the compilation. */
        "lib": [ "es2019" ],

        /* Specify module code generation. */
        "module": "commonjs",

        /*  */
        "moduleResolution": "node",

        /* Report errors for fallthrough cases in switch statement. */
        "noFallthroughCasesInSwitch": true,

        /* Report error when not all code paths in function return a value. */
        "noImplicitReturns": true,

        /* Report errors on unused locals. */
        "noUnusedLocals": true,

        /* Report errors on unused parameters. */
        //"noUnusedParameters": true,

        /* Redirect output structure to the directory. */
        "outDir": "out",

        /* Specifies the root directory of input files. Only use to control the output directory structure with --outDir. */
        "rootDir": "src",

        /* Generates corresponding .map file. */
        "sourceMap": true,

        /* Enable all strict type checking options.
           Enabling --strict enables
                --noImplicitAny,
                --noImplicitThis,
                --alwaysStrict,
                --strictNullChecks,
                --strictFunctionTypes
                --strictPropertyInitialization.
        */
        //"strict": true,

        /* Specify ECMAScript target version. */
        "target": "es2019",

        /*  */
        "allowJs": true,

        "skipLibCheck": true // https://github.com/Azure/ms-rest-js/issues/367
    },
    "include": [
        "src"
    ]
}