tsconfig.json

{
  "extends": "./.svelte-kit/tsconfig.json",
  "compilerOptions": {
    "allowJs": true,
    "checkJs": true,
    "esModuleInterop": true,
    "forceConsistentCasingInFileNames": true,
    "resolveJsonModule": true,
    "skipLibCheck": true,
    "sourceMap": true,
    "strict": true,
    "types": ["@testing-library/jest-dom"], // To recognize methods like toBeInTheDocument()
    "moduleResolution": "bundler"
  },
  // Path aliases are handled by https://kit.svelte.dev/docs/configuration#alias
  // except $lib which is handled by https://kit.svelte.dev/docs/configuration#files
  //
  // If you want to overwrite includes/excludes, make sure to copy over the relevant includes/excludes
  // from the referenced tsconfig.json - TypeScript does not merge them in
  "include": [
    "eslint.config.js",
    "svelte.config.js",
    "tailwind.config.cjs",
    "vitest-setup.js",
    "vitest.config.js",
    ".svelte-kit/ambient.d.ts", // Here and below from .svelte-kit/tsconfig.json
    ".svelte-kit/non-ambient.d.ts",
    ".svelte-kit//types/**/$types.d.ts",
    "vite.config.js",
    "vite.config.ts",
    "src/**/*.js",
    "src/**/*.ts",
    "src/**/*.svelte",
    "test**/*.ts",
    "tests/**/*.js",
    "tests/**/*.ts",
    "tests/**/*.svelte"
  ]
}