final

src/App.jsx

@@ -1,67 +1,46 @@
-import React, { useState, useReducer, useRef, memo } from 'react'
+import React, { useMemo, useCallback, useState } from 'react'
 
-function tasksReducer(state, action) {
+const TodoItem = React.memo(({ item, onToggle, onDelete }) => {
-    switch(action.type) {
+    console.log(`rendred ${item.id}`);
-        case 'ADD_TASK':
+    return <li>
-            return [...state, action.payload]
+            {item.name}
-        case 'TOGGLE_TASK':
+            <button onClick={() => onToggle(item.id)}>Done</button>
-            return state.map(task => task.id === action.payload ? {...task, complite: !task.complite} : task)
+            <button onClick={() => onDelete(item.id)}>remove</button>
-        case 'REMOVE_TASK':
-            return state.filter(task => task.id !== action.payload)
-        default:
-            return state
-    }
-}
-
-const TaskList = memo(function TaskList({tasks, onToggle, onRemove}) {
-    console.log("Rendred")
-    return (
-        <ul>
-        {tasks.map(({id, text, complite}) => (
-                <li key={id}
-                    style={{textDecoration: complite ? 'line-through' : 'none' }}>
-                    <input type="checkbox" checked={complite} onChange={()=>onToggle(id)} />
-                    {text}
-                    <button onClick={()=> onRemove(id)} style={{marginLeft: 10}}>
-                        Удалить
-                    </button>
         </li>
-            ))}
-        </ul>
-    )
 })
 
+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, dispatch] = useReducer(tasksReducer,[])
-    const [input,setInput] = useState('')
-    const [error,setError] = useState('')
-    const inputRef = useRef(null)
-    
-    const addTask = () => {
-        if (input.trim() === '') {
-            setError('Пустой текст задачи')
-            return
-        }
-        setError('')
-        dispatch({
-            type: 'ADD_TASK',
-            payload: {id: Date.now(), text: input.trim(), complite: false }
-        })
-        setInput('')
-        inputRef.current.focus()
-    }
-    
 	return (
-		<div style={{padding: 20}}>
+		<>
-			<h1>Список дел</h1>
+			{/* Добавьте тестовый контент для проверки */}
-			<input ref={inputRef} value={input} onChange={e => setInput(e.target.value)} />
+			<h1>Hello, React!</h1>
-			<button onClick={addTask}>Добавить</button>
+            <ItemList items={[
-            {error && <p style={{color: 'red'}}>{error}</p>}
+                {id:1,name:'Первый',done:false},
-            
+                {id:2,name:'Второй',done:false}
-            <TaskList tasks={tasks} 
+            ]} />
-                onToggle={id => dispatch({type: 'TOGGLE_TASK', payload: id})}
+		</>
-                onRemove={id => dispatch({type: 'REMOVE_TASK', payload: id})} />
-		</div>
 	)
 }
 

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>
 )