tsconfig.json

{
  // The only TypeScript config in your project root. It inherits the framework
  // defaults for application code from `storage/framework/tsconfig.app.json`,
  // which in turn inherits every compiler option from
  // `storage/framework/tsconfig.base.json`.
  //
  // The `compilerOptions` below simply restate those defaults. They are here so
  // the settings worth tuning are visible and editable in one place:
  //
  //   - change a line to override that single option
  //   - delete a line to fall back to the framework default
  //   - delete the whole `compilerOptions` block to use the defaults wholesale
  //
  // Anything not listed here (module resolution, path aliases, which files get
  // included) is owned by the framework and updates along with it. Framework
  // internals under `storage/framework/` have their own config, so this one
  // deliberately never reaches into them.
  "extends": "./storage/framework/tsconfig.app.json",
  "compilerOptions": {
    /* Language and environment */
    "target": "esnext",
    "lib": ["esnext", "dom"],
    "jsx": "preserve",

    /* Type checking */
    "strict": true,
    "strictNullChecks": true,
    "noUncheckedIndexedAccess": true,
    "noUncheckedSideEffectImports": true,
    "noUnusedLocals": false,

    /* Performance - worth keeping `skipLibCheck` on.
       `incremental` is deliberately absent: tsconfig.app.json turns it off,
       and re-enabling it here would restore the false green it exists to
       prevent (stacksjs/stacks#2405). */
    "skipLibCheck": true
  }
}