tsconfig.json

{
  "compilerOptions": {
    "allowSyntheticDefaultImports": true,
    "alwaysStrict": true,
    "charset": "utf-8",
    "declaration": false,
    "declarationMap": false,
    "importHelpers": true,
    "lib": ["dom", "dom.iterable", "es2019", "webworker"],
    "module": "esnext",
    "moduleResolution": "node",
    "noImplicitAny": true,
    "noImplicitReturns": true,
    "noUnusedLocals": true,
    "noUnusedParameters": true,
    "pretty": true,
    "rootDir": "src",
    "strict": true,
    "strictNullChecks": true,
    "target": "es2019",
    "typeRoots": ["./@types", "node_modules/@types"],
    "experimentalDecorators": true,
    "incremental": true,
    "resolveJsonModule": true,
    "sourceMap": true,
    "tsBuildInfoFile": "./.cache/typescript",
    "jsx": "react",
    "esModuleInterop": true,
    "skipLibCheck": true
  },
  "files": ["./src/index.tsx"],
  "include": ["./src/**/*", "./__mocks__/**/*"]
}