tsconfig.json

{
  "compilerOptions": {
    "incremental": true,
    "target": "es5",
    "lib": ["es2017", "es7", "es6"],
    "module": "commonjs",
    "allowJs": true,
    "declaration": true,
    "declarationDir": "./dist",
    "declarationMap": true,
    "sourceMap": true,
    "outDir": "dist",
    "importHelpers": true,
    "downlevelIteration": true,
    "isolatedModules": false,
    "strict": true,
    "noImplicitAny": true,
    "strictNullChecks": true,
    "strictFunctionTypes": true,
    "strictBindCallApply": true,
    "strictPropertyInitialization": true,
    "noImplicitThis": true,
    "alwaysStrict": true,
    "noUnusedLocals": true,
    "noUnusedParameters": true,
    "noImplicitReturns": true,
    "noFallthroughCasesInSwitch": true,
    "noUncheckedIndexedAccess": true,
    "noImplicitOverride": true,
    "noPropertyAccessFromIndexSignature": true,
    "moduleResolution": "node",
    "esModuleInterop": true,
    "experimentalDecorators": true,
    "emitDecoratorMetadata": true,
    "skipLibCheck": true,
    "forceConsistentCasingInFileNames": true
  },
  "include": ["src/**/*"],
  "exclude": ["node_modules", "dist"]
}