tsconfig.json

{
  "compilerOptions": {
    "outDir": "./dist/",
    "allowJs": true,
    "rootDir": "./",
    "sourceMap": true,
    "noImplicitAny": false,
    "target": "es5",
    "module": "commonjs",
    "jsx": "react",
    "noUnusedLocals": true,
    "noUnusedParameters": true,
    "allowSyntheticDefaultImports": true,
    "esModuleInterop": true,
    "strict": true,
    "moduleResolution": "node",
    "skipLibCheck": true,
    "tsBuildInfoFile": ".tsbuildinfo",
    "lib": ["es6", "dom", "es2017"],
    "incremental": true
  },
  "include": [
    "./packages/index.ts",
    "./typings/*",
    "./.storybook/docs/components/*.tsx"
  ],
  "watchOptions": {
    // Use native file system events for files and directories
    "watchFile": "useFsEvents",
    "watchDirectory": "useFsEvents",
    // Poll files for updates more frequently
    // when they're updated a lot.
    "fallbackPolling": "dynamicPriority",
    // Don't coalesce watch notification
    "synchronousWatchDirectory": true
  },
  "exclude": ["**/*.test.*", "**/*.stories.*"]
}