tsconfig.json

{
  "compilerOptions": {
    "allowJs": true,
    "allowSyntheticDefaultImports": true,
    "alwaysStrict": true,
    "baseUrl": "src",
    "composite": true,
    "declarationMap": false,
    "downlevelIteration": true,
    "esModuleInterop": true,
    "forceConsistentCasingInFileNames": true,
    "isolatedModules": true,
    "jsx": "react-jsx",
    "lib": ["DOM", "DOM.Iterable", "ESNext"],
    "module": "esnext",
    "moduleResolution": "node",
    "noEmit": true,
    "noFallthroughCasesInSwitch": true,
    "noImplicitAny": true,
    "noImplicitReturns": true,
    "noImplicitThis": true,
    "noUnusedLocals": false,
    "resolveJsonModule": true,
    "skipLibCheck": true,
    "sourceMap": true,
    "strict": true,
    "strictNullChecks": true,
    "target": "ESNext",
    "tsBuildInfoFile": "node_modules/.cache/tsbuildinfo/build", // avoid clobbering the cypress tsbuildinfo
    "types": ["jest"],
    "useUnknownInCatchVariables": false
  },
  "exclude": ["node_modules"],
  "include": ["src/**/*", "src/**/*.json"],
  "watchOptions": {
    "excludeDirectories": ["node_modules"]
  }
}