Практика Zustand

package-lock.json

@@ -8,8 +8,10 @@
       "name": "store-client",
       "version": "0.0.0",
       "dependencies": {
+        "immer": "^11.1.8",
         "react": "^19.1.0",
-        "react-dom": "^19.1.0"
+        "react-dom": "^19.1.0",
+        "zustand": "^5.0.14"
       },
       "devDependencies": {
         "@eslint/js": "^9.25.0",
@@ -1367,7 +1369,7 @@
       "version": "19.1.6",
       "resolved": "https://registry.npmjs.org/@types/react/-/react-19.1.6.tgz",
       "integrity": "sha512-JeG0rEWak0N6Itr6QUx+X60uQmN+5t3j9r/OVDtWzFXKaj6kD1BwJzOksD0FF6iWxZlbE1kB0q9vtnU2ekqa1Q==",
-      "dev": true,
+      "devOptional": true,
       "license": "MIT",
       "dependencies": {
         "csstype": "^3.0.2"
@@ -1619,7 +1621,7 @@
       "version": "3.1.3",
       "resolved": "https://registry.npmjs.org/csstype/-/csstype-3.1.3.tgz",
       "integrity": "sha512-M1uQkMl8rQK/szD0LNhtqxIPLpimGm8sOBwU7lLnCpSbTyY3yeU1Vc7l4KT5zT4s/yOxHH5O7tIuuLOCnLADRw==",
-      "dev": true,
+      "devOptional": true,
       "license": "MIT"
     },
     "node_modules/debug": {
@@ -2054,6 +2056,16 @@
         "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",
@@ -2794,6 +2806,35 @@
       "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

@@ -10,8 +10,10 @@
     "preview": "vite preview"
   },
   "dependencies": {
+    "immer": "^11.1.8",
     "react": "^19.1.0",
-    "react-dom": "^19.1.0"
+    "react-dom": "^19.1.0",
+    "zustand": "^5.0.14"
   },
   "devDependencies": {
     "@eslint/js": "^9.25.0",

src/App.jsx

@@ -1,111 +1,10 @@
-import React from 'react'
+import Quiz from './components/Quiz'
-
-class ErrorBoundary extends React.Component {
-    constructor(props) {
-        super(props);
-        this.state = {hasError: false};
-    }
-    
-    static getDerivedStateFromError(error) {
-        return { hasError: true }
-    }
-    
-    componentDidCatch(error,info) {
-        console.log(error,info);
-    }
-    
-    handlerReset = () => {
-        this.setState({hasError: false});
-    }
-    
-    render() {
-        if (this.state.hasError) {
-            return (
-                <div>
-                    <h1>Что то поломалось</h1>
-                    <button onClick={this.handlerReset}>Повторить</button>
-                </div>)
-        }
-        return this.props.children;
-    }
-}
-
-class AdvancedErrorBoundary extends React.Component {
-    constructor(props) {
-        super(props);
-        this.state = {
-            hasError: false,
-            error: null,
-            errorInfo: null
-        }
-    }
-    
-    static getDerivedStateFromError(error) {
-        return { hasErorr: true }
-    }
-    
-    componentDidCatch(error, info) {
-        this.setState({ 
-            error: error,
-            errorInfo: info
-        })
-    }
-    
-    handleReset = () => {
-        this.setState({
-            hasError:false,
-            error: null,
-            errorInfo:null
-        });
-    }
-    
-    render() {
-        if(this.state.hasError) {
-            console.log('Error');
-            return (
-                <div>
-                    <h2>Произошла ошибка</h2>
-                    <p>Извеняемся, работаем, исправляем. Разработчика привязали к батарее</p>
-                    <button onClick={this.handleReset}>Попробовать снова</button>
-                </div>
-            )
-        }
-        //Если ошибок нет, то рендрим дочерние объекты
-        return this.props.children
-    }
-}
-
-function ProblemComponent() {
-    const [counter,setCounter] = React.useState(0)
-    
-    const handlerClick = () => setCounter(counter + 1)
-    
-    React.useEffect(() => {
-        if (counter > 5) {
-            throw new Error("Ошибка в компоненте");
-        }
-    },[counter]);
-    return (
-        <div>
-            <h2>Счетчик: {counter}</h2>
-            <button onClick={handlerClick}>Прибавить</button>
-        </div>
-    )
-}
 
 function App() {
 	return (
 		<>
-			<h1>Обработка ошибок в компонентах</h1>
+			<h1>Практика по созданию списка задач</h1>
-            <ErrorBoundary>
+            <Quiz />
-                <ProblemComponent />
-            </ErrorBoundary>
-            <ErrorBoundary>
-                <ProblemComponent />
-            </ErrorBoundary>
-            <ErrorBoundary>
-                <ProblemComponent />
-            </ErrorBoundary>
 		</>
 	)
 }

src/components/Question.jsx

@@ -0,0 +1,31 @@
+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

@@ -0,0 +1,35 @@
+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

@@ -0,0 +1,9 @@
+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

@@ -0,0 +1,36 @@
+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

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