improve eslint configuration

Author: miguelgrinberg

demo/eslint.config.js

@@ -1,23 +1,32 @@
 import js from '@eslint/js'
 import globals from 'globals'
+import react from 'eslint-plugin-react'
 import reactHooks from 'eslint-plugin-react-hooks'
 import reactRefresh from 'eslint-plugin-react-refresh'
 import tseslint from 'typescript-eslint'
 
 export default tseslint.config(
   { ignores: ['dist'] },
   {
-    extends: [js.configs.recommended, ...tseslint.configs.recommended],
+    settings: { react: { version: '18.3' } },
+    extends: [js.configs.recommended, ...tseslint.configs.recommendedTypeChecked],
     files: ['**/*.{ts,tsx}'],
     languageOptions: {
       ecmaVersion: 2020,
       globals: globals.browser,
+      parserOptions: {
+        project: ['./tsconfig.node.json', './tsconfig.app.json'],
+        tsconfigRootDir: import.meta.dirname,
+      },
     },
     plugins: {
+      react,
       'react-hooks': reactHooks,
       'react-refresh': reactRefresh,
     },
     rules: {
+      ...react.configs.recommended.rules,
+      ...react.configs['jsx-runtime'].rules,
       ...reactHooks.configs.recommended.rules,
       'react-refresh/only-export-components': [
         'warn',

demo/package.json

@@ -19,6 +19,7 @@
     "@types/react-dom": "^19.0.3",
     "@vitejs/plugin-react": "^4.3.4",
     "eslint": "^9.19.0",
+    "eslint-plugin-react": "^7.37.4",
     "eslint-plugin-react-hooks": "^5.0.0",
     "eslint-plugin-react-refresh": "^0.4.18",
     "globals": "^15.14.0",