tsconfig.app.json

{
  "compilerOptions": {
    "tsBuildInfoFile": "./node_modules/.tmp/tsconfig.app.tsbuildinfo",
    
    // Emission
    "noEmit": true, // Do not emit by default (only type check)
    //"emitDeclarationOnly": false,
    "target": "ESNext", // JavaScript language version to emit
    "module": "ESNext", // The type of file to emit (CommonJS/ESM/etc.)
    "esModuleInterop": false,
    "allowSyntheticDefaultImports": true,
    
    // Imports
    "moduleResolution": "bundler", // Resolve import specifiers like bundlers (allows explicit file extensions)
    "moduleDetection": "force", // Enforce that we're always using ESM
    "isolatedModules": true, // Restrict language features not compatible with tools like babel
    "allowImportingTsExtensions": true, // Allow importing `.ts` extensions
    "allowJs": true, // If `true` allows to import `.js` files
    "resolveJsonModule": true, // Allow importing `.json` files
    "forceConsistentCasingInFileNames": true, // Do not allow case-insensitive import file name matching
    "paths": {
      //"@": ["./src"],
    },
    
    // Type checking
    "lib": ["ES2023", "DOM", "DOM.Iterable"], // Library declaration files to include (globally)
    "skipLibCheck": true, // Do not type check declaration files (for performance)
    "noErrorTruncation": true,
    
    // Language
    "strict": true,
    "exactOptionalPropertyTypes": true,
    "noUncheckedIndexedAccess": true,
    "useDefineForClassFields": true, // Use latest ES spec version of class fields
    "jsx": "react-jsx",
    
    // Linting
    //"noUnusedLocals": true,
    //"noUnusedParameters": true,
    "noFallthroughCasesInSwitch": true,
    "noUncheckedSideEffectImports": true,
    
    // Check CSS module class names in the IDE
    "plugins": [{
      "name": "typescript-plugin-css-modules",
      "options": {
        //"classnameTransform": "camelCase",
        //"goToDefinition": true,
      },
    }],
  },
  "include": [
    "app",
    "src",
  ],
  "exclude": [
    "node_modules",
    "**/*.spec.ts",
    "src/components/navigations/Tabs/Tabs.stories.tsx", // FIXME: need to fix a few type errors
  ],
}