youhk_test_repository/public/tsconfig.json

{
    "include": [
        "./ts/**/*.ts"
    ],
    "exclude": [
        "node_modules"
    ],
    "compilerOptions": {
        "rootDir": "./ts/",
        "outDir": "./js/",
        "target": "es6",
        "moduleResolution": "node",
        "strictNullChecks": true
    }
}