tsconfig.json

{
  "extends": "./.svelte-kit/tsconfig.json",
  /*
   * If you want to overwrite includes/excludes, make sure to copy over the
   * relevant includes/excludes from the referenced
   * tsconfig.json - TypeScript does not merge them in.
   */
  "include": [
    // Default from `./.svelte-kit/tsconfig.json`
    ".svelte-kit/ambient.d.ts",
    ".svelte-kit/types/**/$types.d.ts",
    "./vite.config.ts",
    "./src/**/*.js",
    "./src/**/*.ts",
    "./src/**/*.svelte",
    "./tests/**/*.js",
    "./tests/**/*.ts",
    "./tests/**/*.svelte",
    // Custom
    "./src/**/*.d.ts",
    "./*.cjs",
    "./.*.cjs",
    "./*.js",
    "./.*.js",
    "./*.ts",
    "./.*.ts",
    "./scripts/app/**/*.js",
    "./scripts/stack/**/*.js",
    "./scripts/testing/**/*.js"
  ],
  "compilerOptions": {
    "useDefineForClassFields": true,
    "esModuleInterop": true,
    "allowSyntheticDefaultImports": true,
    "resolveJsonModule": true,
    "removeComments": true,
    "experimentalDecorators": true,
    "emitDecoratorMetadata": true,
    "sourceMap": true,
    "incremental": true,
    /*
     * Cannot be disabled because of "composite": true
     */
    // "declaration": false,
    "downlevelIteration": true,
    "importHelpers": true,
    "skipDefaultLibCheck": false,
    "skipLibCheck": true, // SvelteKit default: true
    /**
     * Typecheck JS in `.svelte` and `.js` files by default.
     * Disable checkJs if you'd like to use dynamic types in JS.
     * Note that setting allowJs false does not prevent the use
     * of JS in `.svelte` files.
     */
    "allowJs": true,
    "checkJs": true,
    "outDir": "./dist",
    /*
     * Wrongly set `baseUrl` interferes with SvelteKit path aliases.
     * E.g. Import from `$lib` works but IDE doesn't recognize it
     */
    // "baseUrl": "./",
    /*
     * Needed for importing Page Objects in Playwright tests
     */
    "allowImportingTsExtensions": true,
    // "noEmit": true,
    "emitDeclarationOnly": true,
    "composite": true,
    /**
     * Path aliases are handled by https://kit.svelte.dev/docs/configuration#alias
     */
    // "paths": {
    // 	"@": ["./"],
    // 	"@src/*": ["./src/*"]
    // },
    "strict": true,
    "alwaysStrict": true,
    "noImplicitOverride": true,
    "noImplicitReturns": true,
    "noPropertyAccessFromIndexSignature": true,
    "noUncheckedIndexedAccess": true,
    "forceConsistentCasingInFileNames": true,
    "noFallthroughCasesInSwitch": true,
    "exactOptionalPropertyTypes": true,
    /**
     * Checked by ESLint
     */
    "noUnusedLocals": false
  }
}