tsconfig.json

{
  "compilerOptions": {
    "target": "ES2021",
    "useDefineForClassFields": true,
    "lib": ["ES2021", "DOM", "DOM.Iterable"],
    "module": "ESNext",
    "skipLibCheck": true,
    "moduleResolution": "bundler",
    "allowImportingTsExtensions": true,
    "resolveJsonModule": true,
    "isolatedModules": true,
    "noEmit": true,
    "jsx": "react-jsx",
    "strict": true,
    "noUnusedLocals": true,
    "noUnusedParameters": true,
    "noFallthroughCasesInSwitch": true,
    "forceConsistentCasingInFileNames": true
  },
  "include": ["src"],
  /*
    Tests run under Node, not in the webview: they import `node:assert` and read
    `process.exit`, neither of which this config has types for, and installing
    `@types/node` to typecheck two hundred lines of arithmetic would pull Node's
    globals into the app's own type space. They are transpiled and run by
    `scripts/run-ts-tests.mjs` instead — see the comment there.
  */
  "exclude": ["src/**/*.test.ts"],
  "references": [{ "path": "./tsconfig.node.json" }]
}