tsconfig.base.json

{
  "compilerOptions": {
    "composite": true,
    "declaration": true,
    "declarationMap": false,
    "sourceMap": false,
    "emitDeclarationOnly": true,
    "allowSyntheticDefaultImports": true,
    "esModuleInterop": true,
    "forceConsistentCasingInFileNames": false,
    "importHelpers": true,
    "importsNotUsedAsValues": "error",
    "resolveJsonModule": true,
    "experimentalDecorators": true,
    "useDefineForClassFields": true,
    "incremental": true,
    "jsx": "preserve",
    "lib": ["dom", "esnext"],
    "module": "esnext",
    "moduleResolution": "node",
    "noFallthroughCasesInSwitch": true,
    "noImplicitAny": true,
    "noImplicitReturns": true,
    "noUnusedLocals": false,
    "noUnusedParameters": false,
    "skipLibCheck": true,
    "strict": true,
    "strictFunctionTypes": true,
    "strictNullChecks": true,
    "stripInternal": true,
    "target": "es6",
    "typeRoots": ["node_modules/@types", "node_modules/jest"],
    "types": ["node", "jest", "@testing-library/jest-dom", "@testing-library/react"]
  }
}