tsconfig.json

{
  "compilerOptions": {
    "target": "es5",
    "outDir": "build/lib",
    "lib": [
      "dom",
      "dom.iterable",
      "esnext",
      "es5",
      "es6",
      "es7",
      "es2017"
    ],
    "skipLibCheck": true,
    "esModuleInterop": true,
    "strict": true,
    "module": "esnext",
    "resolveJsonModule": true,
    "noEmit": true,
    "sourceMap": true,
    "experimentalDecorators": true,
    "allowJs": true,
    "jsx": "preserve",
    "moduleResolution": "node",
    "rootDirs": [
      "src",
      "stories",
      "definitions"
    ],
    "baseUrl": "src",
    "forceConsistentCasingInFileNames": true,
    "noImplicitReturns": true,
    "noImplicitThis": true,
    "noImplicitAny": true,
    "strictNullChecks": true,
    "suppressImplicitAnyIndexErrors": true,
    "noUnusedLocals": false,
    "allowSyntheticDefaultImports": true,
    "emitDecoratorMetadata": true,
    "isolatedModules": true
  },
  "include": [
    "definitions",
    "stories",
    "src",
    "src/**/*"
  ],
  "exclude": [
    "node_modules",
    "build",
    "scripts"
  ]
}