tsconfig.json

{
  "compilerOptions": {
    "target": "es5",
    "lib": [
      "es6",
      "dom",
      "es2016",
      "es2017"
    ],
    "rootDirs": [
      "src"
    ],
    "importHelpers": true,
    "removeComments": true,
    "noImplicitAny": true,
    "strictNullChecks": true,
    "noImplicitThis": true,
    "noImplicitReturns": true,
    "alwaysStrict": true,
    "noUnusedLocals": true,
    "noUnusedParameters": true,
    "declaration": true,
    "jsx": "react",
    "esModuleInterop": true,
    "baseUrl": ".",
    "module": "esnext",
    "outDir": "lib/esm",
    "allowJs": true,
    "skipLibCheck": true,
    "allowSyntheticDefaultImports": true,
    "strict": true,
    "forceConsistentCasingInFileNames": true,
    "noFallthroughCasesInSwitch": true,
    "moduleResolution": "node",
    "resolveJsonModule": true,
    "isolatedModules": true
  },
  "include": [
    "./src/**/*.ts",
    "./src/**/*.tsx"
  ],
  "exclude": [
    "node_modules",
    "**/*.spec.ts",
    "**/*.spec.tsx"
  ]
}