tsconfig.json

{
  "compilerOptions": {
    /* Basic Options */
    "incremental": true,
    "target": "ES2017",
    "module": "commonjs",
    "declaration": true,
    "outDir": "build",

    /* Strict Type-Checking Options */
    "strict": true,
    "noImplicitAny": true,
    "strictNullChecks": true,
    "strictFunctionTypes": true,
    "strictBindCallApply": true,
    "strictPropertyInitialization": true,
    "noImplicitThis": true,
    "alwaysStrict": true,

    /* Additional Checks */
    "noUnusedLocals": true,
    "noUnusedParameters": true,
    "noImplicitReturns": true,
    "noFallthroughCasesInSwitch": true,

    /* Module Resolution Options */
    "moduleResolution": "Node",
    "esModuleInterop": true,

    "forceConsistentCasingInFileNames": true
  },
  "include": ["src/**/*"],
  "exclude": ["node_modules", "**/*.spec.ts"]
}