tsconfig.json

{
  "compilerOptions": {
    "baseUrl": "./", // enables project relative paths config
    "outDir": "build/dist", // target for compiled files
    "allowSyntheticDefaultImports": true, // no errors with commonjs modules interop
    "esModuleInterop": true,
    "allowJs": false, // don't include js files
    "declaration": true, // emit declarations
    "emitDecoratorMetadata": true,
    "experimentalDecorators": true,
    "forceConsistentCasingInFileNames": true,
    "importHelpers": true, // importing helper Functions from tslib
    "noEmitHelpers": true, // disable emitting inline helper Functions
    "jsx": "react", // process JSX
    "lib": [
      "dom",
      "es2016",
      "es2017.object"
    ],
    "target": "es5", // "es2015" for ES6+ engines
    "module": "commonjs", // "es2015" for tree-shaking
    "moduleResolution": "node",
    "noEmitOnError": true,
    "noFallthroughCasesInSwitch": true,
    "noImplicitAny": true,
    "noImplicitReturns": true,
    "noImplicitThis": true,
    "noUnusedLocals": true,
    "noUnusedParameters": true,
    "strict": true,
    "pretty": true,
    "sourceMap": true
  },
  "include": [
    "src/**/*"
  ],
  "exclude": [
    "node_modules",
    "src/**/*.spec.*",
    "jest.tests.ts",
  ]
}