tsconfig.json

{
  "compilerOptions": {
    "target": "ES2015",
    "module": "CommonJS",
    "rootDir": "./src",
    "resolveJsonModule": true,
    "outDir": "./dist",
    "esModuleInterop": true,
    "forceConsistentCasingInFileNames": true,
    "strict": true,
    "skipLibCheck": false,
    "declaration": true,
    "sourceMap": true,
    "noImplicitAny": true,
    "strictNullChecks": true,
    "strictBindCallApply": true,
    "strictFunctionTypes": true,
    "strictPropertyInitialization": true,
    "noImplicitThis": true,
    "alwaysStrict": true,
    "noFallthroughCasesInSwitch": true,
    "noUnusedParameters": true,
    "noUnusedLocals": true,
    "noImplicitReturns": true,
    "noUncheckedIndexedAccess": true,
    "useUnknownInCatchVariables": true,
    "exactOptionalPropertyTypes": true
  },
  "include": ["src/**/*"],
  "exclude": ["src/test/**/*", "node_modules", "dist"]
}