Сделали несколько кастомных хуков

package-lock.json

@@ -8,10 +8,9 @@
       "name": "store-client",
       "version": "0.0.0",
       "dependencies": {
-        "immer": "^11.1.8",
+        "@tanstack/react-query": "^5.100.14",
         "react": "^19.1.0",
-        "react-dom": "^19.1.0",
-        "zustand": "^5.0.14"
+        "react-dom": "^19.1.0"
       },
       "devDependencies": {
         "@eslint/js": "^9.25.0",
@@ -1306,6 +1305,32 @@
         "win32"
       ]
     },
+    "node_modules/@tanstack/query-core": {
+      "version": "5.100.14",
+      "resolved": "https://registry.npmjs.org/@tanstack/query-core/-/query-core-5.100.14.tgz",
+      "integrity": "sha512-5X41dGpxgeaHISCRW2oYwcSycZeULZzAunaudXT9ov1KOTj9xwt0CH6hbwqP1/z74ZWF7rYFnDpyYH07XFcZew==",
+      "license": "MIT",
+      "funding": {
+        "type": "github",
+        "url": "https://github.com/sponsors/tannerlinsley"
+      }
+    },
+    "node_modules/@tanstack/react-query": {
+      "version": "5.100.14",
+      "resolved": "https://registry.npmjs.org/@tanstack/react-query/-/react-query-5.100.14.tgz",
+      "integrity": "sha512-oOr6aRdSFEwWhzxEkD/9ZcItM3+LjBSkeVmadWKwUssAHTsqd/7bOjWrX4AbvEkoEhgAxzN0Xk6H/aYzXiYBAw==",
+      "license": "MIT",
+      "dependencies": {
+        "@tanstack/query-core": "5.100.14"
+      },
+      "funding": {
+        "type": "github",
+        "url": "https://github.com/sponsors/tannerlinsley"
+      },
+      "peerDependencies": {
+        "react": "^18 || ^19"
+      }
+    },
     "node_modules/@types/babel__core": {
       "version": "7.20.5",
       "resolved": "https://registry.npmjs.org/@types/babel__core/-/babel__core-7.20.5.tgz",
@@ -1369,7 +1394,7 @@
       "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"
@@ -1621,7 +1646,7 @@
       "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 +2081,6 @@
         "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",
@@ -2806,35 +2821,6 @@
       "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 +10,9 @@
     "preview": "vite preview"
   },
   "dependencies": {
-    "immer": "^11.1.8",
+    "@tanstack/react-query": "^5.100.14",
     "react": "^19.1.0",
-    "react-dom": "^19.1.0",
-    "zustand": "^5.0.14"
+    "react-dom": "^19.1.0"
   },
   "devDependencies": {
     "@eslint/js": "^9.25.0",

src/App.jsx

@@ -1,10 +1,93 @@
-import Quiz from './components/Quiz'
+import React, {useState, useEffect, useRef } from 'react'
+//import { useQuery } from '@tanstack/react-query'
+
+function useWindowWidth() {
+    const [width,setWidth] = useState(window.innerWidth)
+    
+    useEffect(() => {
+        const handleResize = () => setWidth(window.innerWidth);
+        window.addEventListener('resize',handleResize);
+        return () => window.removeEventListener('resize',handleResize);
+    },[])
+    
+    return width
+}
+
+function useLocalStorage(key, initValue) {
+    const [value, setValue] = useState(()=>{
+        const stored = localStorage.getItem(key);
+        return stored !== null ? JSON.parse(stored) : initValue
+    })
+    
+    useEffect(() => {
+        localStorage.setItem(key, JSON.stringify(value))
+    },[key, value])
+    
+    return [value,setValue]
+}
+/*
+function useUserData(userId) {
+    return useQuery(
+        ['user',userId],
+        () => fetch(`/api/user/${userId}`).then(res => res.json()),
+        {refetchOnWindowFocus: false}
+    )
+}*/
+
+function useInput(initValue, validate) {
+    const [value, setValue] = useState(initValue);
+    const [error, setError] = useState(null);
+    
+    const onChange = e => {
+        const newValue = e.target.value
+        setValue(newValue)
+        if (validate) {
+            const validationResult = validate(newValue)
+            setError(validationResult)
+        }
+    }
+    
+    return { value, error, onChange }
+}
+
+function useInterval(callback, delay) {
+    const savedCallback = useRef()
+    
+    useEffect(()=>{
+        savedCallback.current = callback
+    },[callback]);
+    
+    useEffect(()=>{
+        if (delay == null) return
+        const id = setInterval(()=>{
+            savedCallback.current()
+        },delay);
+        return () => clearInterval(id);
+    },[delay])
+}
 
 function App() {
+    const width = useWindowWidth();
+    const [theme, setTheme] = useLocalStorage('theme','light');
+    
+    const username = useInput(
+        '',
+        value => value.length < 3 ? 'минимум 3 символа' : null
+    )
+    
 	return (
 		<>
-			<h1>Практика по созданию списка задач</h1>
-            <Quiz />
+			<h1>Hello, React!{width}</h1>
+            <button onClick={()=>{
+                setTheme(theme === 'light' ? 'dark' : 'light')
+            }}>
+                Сменить тему
+            </button>
+            <p><input type="text" 
+                value={username.value} 
+                onChange={username.onChange} />
+                { username.error ? username.error : '' }
+            </p>
 		</>
 	)
 }

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>
 )