tsconfig.json

{
  "compilerOptions": {
    "typeRoots": [
      "src/typings/*",
      "./node_modules/@types"
    ], /* List of folders to include type definitions from. */
    "allowSyntheticDefaultImports": true, /* Allow default imports from modules with no default export. This does not affect code emit, just typechecking. */
    "alwaysStrict": true,
    "declaration": true,
    "declarationMap": true,
    "esModuleInterop": true,
    "forceConsistentCasingInFileNames": true,
    "module": "ES2015",
    "moduleResolution": "node",
    "noFallthroughCasesInSwitch": true,
    "noImplicitAny": true,
    "noImplicitReturns": true,
    "noImplicitThis": true,
    "noUnusedLocals": true,
    "noUnusedParameters": true,
    "outDir": "dist",
    "removeComments": true,
    "rootDir": "src",
    "sourceMap": true,
    "strict": true,
    "strictBindCallApply": true,
    "strictFunctionTypes": true,
    "strictNullChecks": true,
    "strictPropertyInitialization": true,
    "target": "es2015",
    "resolveJsonModule": true
  },
  "include": [
    "src/**/*.ts"
  ],
  "exclude": [
    "tests"
  ]
}