Сделали отложеную загрузку и перехват исключений

package-lock.json

@@ -8,10 +8,10 @@
       "name": "store-client",
       "version": "0.0.0",
       "dependencies": {
-        "immer": "^11.1.8",
         "react": "^19.1.0",
         "react-dom": "^19.1.0",
-        "zustand": "^5.0.14"
+        "react-error-boundary": "^6.1.2",
+        "react-router-dom": "^7.17.0"
       },
       "devDependencies": {
         "@eslint/js": "^9.25.0",
@@ -1369,7 +1369,7 @@
       "version": "19.1.6",
       "resolved": "https://registry.npmjs.org/@types/react/-/react-19.1.6.tgz",
       "integrity": "sha512-JeG0rEWak0N6Itr6QUx+X60uQmN+5t3j9r/OVDtWzFXKaj6kD1BwJzOksD0FF6iWxZlbE1kB0q9vtnU2ekqa1Q==",
-      "devOptional": true,
+      "dev": true,
       "license": "MIT",
       "dependencies": {
         "csstype": "^3.0.2"
@@ -1602,6 +1602,19 @@
       "dev": true,
       "license": "MIT"
     },
+    "node_modules/cookie": {
+      "version": "1.1.1",
+      "resolved": "https://registry.npmjs.org/cookie/-/cookie-1.1.1.tgz",
+      "integrity": "sha512-ei8Aos7ja0weRpFzJnEA9UHJ/7XQmqglbRwnf2ATjcB9Wq874VKH9kfjjirM6UhU2/E5fFYadylyhFldcqSidQ==",
+      "license": "MIT",
+      "engines": {
+        "node": ">=18"
+      },
+      "funding": {
+        "type": "opencollective",
+        "url": "https://opencollective.com/express"
+      }
+    },
     "node_modules/cross-spawn": {
       "version": "7.0.6",
       "resolved": "https://registry.npmjs.org/cross-spawn/-/cross-spawn-7.0.6.tgz",
@@ -1621,7 +1634,7 @@
       "version": "3.1.3",
       "resolved": "https://registry.npmjs.org/csstype/-/csstype-3.1.3.tgz",
       "integrity": "sha512-M1uQkMl8rQK/szD0LNhtqxIPLpimGm8sOBwU7lLnCpSbTyY3yeU1Vc7l4KT5zT4s/yOxHH5O7tIuuLOCnLADRw==",
-      "devOptional": true,
+      "dev": true,
       "license": "MIT"
     },
     "node_modules/debug": {
@@ -2056,16 +2069,6 @@
         "node": ">= 4"
       }
     },
-    "node_modules/immer": {
-      "version": "11.1.8",
-      "resolved": "https://registry.npmjs.org/immer/-/immer-11.1.8.tgz",
-      "integrity": "sha512-/tbkHMW7y10Lx6i1crLjD4/OhNkRG+Fo7byZHtah0547nIeXYcpIXaUh0IAQY6gO5459qpGGYapcEOHtFXkIuA==",
-      "license": "MIT",
-      "funding": {
-        "type": "opencollective",
-        "url": "https://opencollective.com/immer"
-      }
-    },
     "node_modules/import-fresh": {
       "version": "3.3.1",
       "resolved": "https://registry.npmjs.org/import-fresh/-/import-fresh-3.3.1.tgz",
@@ -2473,6 +2476,15 @@
         "react": "^19.1.0"
       }
     },
+    "node_modules/react-error-boundary": {
+      "version": "6.1.2",
+      "resolved": "https://registry.npmjs.org/react-error-boundary/-/react-error-boundary-6.1.2.tgz",
+      "integrity": "sha512-3DpCr5HVdZ0caUjYE/kIHBEJN0mNP3ZCgf16c48uJ5TbWjorKVp+YG8W3XqlJ7vJAVNw6wNIImyPXmFydwmyng==",
+      "license": "MIT",
+      "peerDependencies": {
+        "react": "^18.0.0 || ^19.0.0"
+      }
+    },
     "node_modules/react-refresh": {
       "version": "0.17.0",
       "resolved": "https://registry.npmjs.org/react-refresh/-/react-refresh-0.17.0.tgz",
@@ -2483,6 +2495,44 @@
         "node": ">=0.10.0"
       }
     },
+    "node_modules/react-router": {
+      "version": "7.17.0",
+      "resolved": "https://registry.npmjs.org/react-router/-/react-router-7.17.0.tgz",
+      "integrity": "sha512-FDELK7rTMlCHO5+reyXsPlmfr7N1F91lPHsWYfMEGQm/KQ+F4JFM8jGoeQDmDvdTs93Fw9aSilH+uKRb4/jXvQ==",
+      "license": "MIT",
+      "dependencies": {
+        "cookie": "^1.0.1",
+        "set-cookie-parser": "^2.6.0"
+      },
+      "engines": {
+        "node": ">=20.0.0"
+      },
+      "peerDependencies": {
+        "react": ">=18",
+        "react-dom": ">=18"
+      },
+      "peerDependenciesMeta": {
+        "react-dom": {
+          "optional": true
+        }
+      }
+    },
+    "node_modules/react-router-dom": {
+      "version": "7.17.0",
+      "resolved": "https://registry.npmjs.org/react-router-dom/-/react-router-dom-7.17.0.tgz",
+      "integrity": "sha512-fyU2yjGups/hE6Xz0I5ZYbVL8Gx29eCjgpHaRaTaVU+OOAdfRX05KsvyRm0GO8YQwOkhpU3MurW1jyMUJn+zSw==",
+      "license": "MIT",
+      "dependencies": {
+        "react-router": "7.17.0"
+      },
+      "engines": {
+        "node": ">=20.0.0"
+      },
+      "peerDependencies": {
+        "react": ">=18",
+        "react-dom": ">=18"
+      }
+    },
     "node_modules/resolve-from": {
       "version": "4.0.0",
       "resolved": "https://registry.npmjs.org/resolve-from/-/resolve-from-4.0.0.tgz",
@@ -2556,6 +2606,12 @@
         "semver": "bin/semver.js"
       }
     },
+    "node_modules/set-cookie-parser": {
+      "version": "2.7.2",
+      "resolved": "https://registry.npmjs.org/set-cookie-parser/-/set-cookie-parser-2.7.2.tgz",
+      "integrity": "sha512-oeM1lpU/UvhTxw+g3cIfxXHyJRc/uidd3yK1P242gzHds0udQBYzs3y8j4gCCW+ZJ7ad0yctld8RYO+bdurlvw==",
+      "license": "MIT"
+    },
     "node_modules/shebang-command": {
       "version": "2.0.0",
       "resolved": "https://registry.npmjs.org/shebang-command/-/shebang-command-2.0.0.tgz",
@@ -2806,35 +2862,6 @@
       "funding": {
         "url": "https://github.com/sponsors/sindresorhus"
       }
-    },
-    "node_modules/zustand": {
-      "version": "5.0.14",
-      "resolved": "https://registry.npmjs.org/zustand/-/zustand-5.0.14.tgz",
-      "integrity": "sha512-/8tAspM5LMPr28b3fwLYrtdj77ECpfZviaP75CMTnwO8ISyaE4GDIG/9rDDYq/cH9D2Xw2A2RXglLInmVBQB/g==",
-      "license": "MIT",
-      "engines": {
-        "node": ">=12.20.0"
-      },
-      "peerDependencies": {
-        "@types/react": ">=18.0.0",
-        "immer": ">=9.0.6",
-        "react": ">=18.0.0",
-        "use-sync-external-store": ">=1.2.0"
-      },
-      "peerDependenciesMeta": {
-        "@types/react": {
-          "optional": true
-        },
-        "immer": {
-          "optional": true
-        },
-        "react": {
-          "optional": true
-        },
-        "use-sync-external-store": {
-          "optional": true
-        }
-      }
     }
   }
 }

package.json

@@ -10,10 +10,10 @@
     "preview": "vite preview"
   },
   "dependencies": {
-    "immer": "^11.1.8",
     "react": "^19.1.0",
     "react-dom": "^19.1.0",
-    "zustand": "^5.0.14"
+    "react-error-boundary": "^6.1.2",
+    "react-router-dom": "^7.17.0"
   },
   "devDependencies": {
     "@eslint/js": "^9.25.0",

src/App.jsx

@@ -1,10 +1,25 @@
-import Quiz from './components/Quiz'
+import { Suspense, lazy } from 'react'
+import { ErrorBoundary } from 'react-error-boundary'
+
+const LazyComponent = lazy(() => import('./MyComponent'))
+
+function ErrorFallBack({error, resetErrorBoundary }) {
+    return (
+        <div>
+            <h2>Что то сломалось</h2>
+            <button onClick={resetErrorBoundary}></button>
+        </div>
+    )
+}
 
 function App() {
 	return (
 		<>
-			<h1>Практика по созданию списка задач</h1>
+			<ErrorBoundary FallBackComponent={ErrorFallBack}>
-            <Quiz />
+                <Suspense fallback={<div>Загрузка ...</div>}>
+			        <LazyComponent />
+                </Suspense>
+            </ErrorBoundary>
 		</>
 	)
 }

src/components/Question.jsx

@@ -1,31 +0,0 @@
-import { useState } from 'react'
-
-const Question = ({question, onSubmit}) => {
-    const [selectedOption,setSelectedOption] = useState('')
-    const handleSubmit = () => {
-        console.log(selectedOption);
-        if (selectedOption) onSubmit(selectedOption);
-    }
-    
-    return (
-        <div>
-            <h2>Вопрос {question.id}: {question.text}</h2>
-            <div>
-                {question.options.map((option, index)=>(
-                    <label key={index}>
-                        <input 
-                        type="radio" 
-                        name={`question-${question.id}`}
-                        value={option}
-                        checked={selectedOption === option}
-                        onChange={() => setSelectedOption(option)} />
-                        {option}
-                    </label>
-                ))}
-            </div>
-            <button onClick={handleSubmit} >Следующий вопрос</button>
-        </div>
-    )
-}
-
-export default Question

src/components/Quiz.jsx

@@ -1,35 +0,0 @@
-import useQuizStore from './store/useQuizStore'
-import Question from './Question'
-import Result from './Result'
-
-const Quiz = () => {
-    const {
-        questions,
-        currentQuestion,
-        userAswers,
-        isFinished,
-        submitAnswer,
-        goToNextQuestion,
-        restartQuiz,
-    } = useQuizStore();
-    
-    const handleAnswerSubmit = (anwser) => {
-        console.log('Yes')
-        submitAnswer(answer)
-        if (currentQuestion < questions.length - 1 ) {
-            goToNextQuestion()
-        }
-    }
-    if(isFinished) {
-        return (<Result />)
-    }
-    return (
-        <div className="quiz">
-            <Question 
-            question={questions[currentQuestion]} 
-            onSubmit={handleAnswerSubmit} />
-        </div>
-    )
-}
-
-export default Quiz

src/components/Result.jsx

@@ -1,9 +0,0 @@
-const Result = ({questions, userAswers, onRestart}) => {
-    return (
-        <div>
-            <h2>Результат</h2>
-            <button onClick={onRestart}>Начать заново</button>
-        </div>
-    )
-}
-export default Result

src/components/store/useQuizStore.jsx

@@ -1,36 +0,0 @@
-import { create } from 'zustand'
-
-const useQuizStore = create(set => ({
-    questions: [
-        {
-            id:1,
-            text: 'Сколько будет 2+2?',
-            options: ['3','4','2'],
-            correctAnswer: '4',
-        },
-        {
-            id:2,
-            text: 'Столица России?',
-            options: ['Москва','Париж','Лондон'],
-            correctAnswer: 'Москва',
-        },
-    ],
-    currentQuestion: 0,
-    userAnswer:[],
-    isFinished: false,
-    goToNextQuestion: () => set(state => ({
-            currentQuestion: state.currentQuestion + 1,
-    })),
-    submitAnswer: answer => set(state => {
-        const updatedAnswer = [...state.userAnswer, answer];
-        const isFinished = (state.currentQuestion >= state.questions.length - 1);
-        return {userAnswer: updatedAnswer, isFinished};
-    }),/*
-    restartQuiz: () => set({
-        currentQuestion: 0,
-        userAnswer: [],
-        isFinished: false
-    }),     */
-}))
-
-export default useQuizStore

src/main.jsx

@@ -4,5 +4,7 @@ import { createRoot } from 'react-dom/client'
 import App from './App.jsx'
 
 createRoot(document.getElementById('root')).render(
+	<StrictMode>
 		<App />
+	</StrictMode>
 )