Практика

package-lock.json

@@ -8,6 +8,7 @@
       "name": "store-client",
       "version": "0.0.0",
       "dependencies": {
+        "immer": "^11.1.8",
         "react": "^19.1.0",
         "react-dom": "^19.1.0"
       },
@@ -2054,6 +2055,16 @@
         "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",

package.json

@@ -4,12 +4,13 @@
   "version": "0.0.0",
   "type": "module",
   "scripts": {
-    "dev": "vite", 
+    "dev": "vite",
     "build": "vite build",
     "lint": "eslint .",
     "preview": "vite preview"
   },
   "dependencies": {
+    "immer": "^11.1.8",
     "react": "^19.1.0",
     "react-dom": "^19.1.0"
   },

src/App.jsx

@@ -1,45 +1,49 @@
-import React, { useMemo, useCallback, useState } from 'react'
+import React, { useState, useEffect } from 'react'
-
+import { produce } from 'immer'
-const TodoItem = React.memo(({ item, onToggle, onDelete }) => {
-    console.log(`rendred ${item.id}`);
-    return <li>
-            {item.name}
-            <button onClick={() => onToggle(item.id)}>Done</button>
-            <button onClick={() => onDelete(item.id)}>remove</button>
-        </li>
-})
-
-function ItemList({ items }) {
-
-    const handleToggle = useCallback(id => {
-        items.done = true;
-        console.log(`Item ${id} done`)
-        console.log(id)
-    },[]);
-    
-    const handleDelete = useCallback(id => {
-        items.pop(id);
-    },[]);
-    return (
-        <>
-            <h3>List items</h3>
-            {items.map(item => (
-             <TodoItem key={item.id} item={item}
-              onToggle={handleToggle} onDelete={handleDelete} />
-             ))}
-        </>
-    )
-}
 
 function App() {
+    const [tasks,setTasks] = useState([])
+    const [input,setInput] = useState('')
+    
+    const addTask = () => {
+        if(!input.trim()) return
+        
+        setTasks(currentTasks => produce(currentTasks, draft => {
+            draft.push({
+                id: Date.now(),
+                text: input.trim(),
+                done: false
+            })
+        }))
+        setInput('')
+    }
+    const toggleTask = id => {
+        setTasks(currentTask => produce(currentTask, draft => {
+            const task = draft.find(t => t.id === id)
+            if(task) {
+                task.done = !task.done
+            }
+        }))
+    }
+    const removeTask = id => {
+        setTasks(currentTask => produce(currentTask, draft => {
+            const index = draft.findIndex(t => t.id === id)
+            if (index !== -1)
+                draft.splice(index,1)
+        }))
+    }
 	return (
 		<>
-			{/* Добавьте тестовый контент для проверки */}
+			<h1>Практика по созданию списка задач</h1>
-			<h1>Hello, React!</h1>
+            <input value={input} onChange={e=>setInput(e.target.value)} />
-            <ItemList items={[
+            <button onClick={addTask}>Добавить</button>
-                {id:1,name:'Первый',done:false},
+        <ul>{tasks.map(({id,text,done}) => (
-                {id:2,name:'Второй',done:false}
+                <li key={id} style={{ textDecoration: done ? 'line-through' : 'none'}}>
-            ]} />
+                <input type="checkbox" checked={done} onChange={()=> toggleTask(id)} />
+                {text}
+                <button onClick={() => removeTask(id)}>Удалить</button>
+                </li>
+            ))}</ul>
 		</>
 	)
 }

src/MyComponent.jsx

@@ -0,0 +1,8 @@
+export function MyComponent() {
+    return (
+        <>
+        <h1>Hello</h1>
+        </>
+    )
+}
+export default MyComponent