ts/tsconfig.json

{
    "compilerOptions": {
        "target": "es5",
        "module": "ES2017",
        "lib": [
            "ES2015",
            "ES2016.Array.Include",
            "ES2017.Object",
            "ES2017.String"
        ],
        "noEmit": true,
        "strict": true,
        "noImplicitAny": true,
        "strictNullChecks": true,
        "strictFunctionTypes": true,
        "strictBindCallApply": true,
        "strictPropertyInitialization": true,
        "noImplicitThis": true,
        "alwaysStrict": true,

        "moduleResolution": "node",
        "forceConsistentCasingInFileNames": true
    }
}