Сделали компонент с фотографией

src/App.jsx

@@ -1,96 +1,58 @@
 import React from 'react'
-import styles from './App.module.scss'
 
-class Clock extends React.Component {
+class RandomUser extends React.Component {
     constructor(props) {
-        super(props);
+        super(props)
-        this.state = { date: new Date() };
+        this.state = { user: {} }
     }
+    
     componentDidMount() {
-        this.timerId = setInterval( () => this.tick(), 1000);
+        fetch('https://randomuser.me/api')
+        .then(responce => responce.json())
+        .then(json => this.setState({ user: json.results[0] }));
+        console.log('смонтирован')
     }
+    
+    componentDidUpdate(prevProps,prevState) {
+        console.log(this.state);
+        console.log('Компонент обнвлен')
+    }
+    
     componentWillUnmount() {
-        clearInterval(this.timerId)
+        console.log('Компонент таймера размонтирован')
-    }
-    tick() {
-        this.setState({ date: new Date() })
     }
+    
     render() {
-        return <div>{this.state.date.toLocaleTimeString()}</div>
+        return <div>
+            {this.state.user && 
+                this.state.user.name &&
+                (
+                <>
+                    <h2>{this.state.user.name.first} {this.state.user.name.last}</h2>
+                    <img src={this.state.user.picture.medium} />
+                    <button onClick={() => {
+                        console.log('Загружаем ... ')
+                        fetch('https://randomuser.me/api')
+                        .then(responce => responce.json())
+                        .then(json => this.setState({ user: json.results[0] }));
+                    }}>Загрузить нового</button>
+                </>
+                )
             }
-}
-
-function Clock2() {
-    const [date, setDate] = React.useState(new Date());
-    
-    React.useEffect(()=>{
-        const timerId = setInterval(()=> setDate(new Date()),1000);
-        return () => clearInterval(timerId);
-    },[])
-    
-    return <div>{date.toLocaleTimeString()}</div>
-}
-
-function MouseTracker() {
-    const [x,setX] = React.useState(0);
-    const [y,setY] = React.useState(0);
-    
-    const mouseMoveHandler = event => {
-        setX(event.clientX);
-        setY(event.clientY);
-    }
-    
-    React.useEffect(()=>{
-        document.addEventListener('mousemove', mouseMoveHandler);
-        return () => {
-            document.removeEventListener('mousemove',mouseMoveHandler);
-        }
-    },[]);
-    
-    return <div className={styles.container}>
-        <p>Координаты мыши:<br /> X:<b>{x}</b>, Y:<b>{y}</b></p>
             </div>
     }
-
-function DataFetcher() {
-    const [posts,setPosts] = React.useState([]);
-    const [users,setUsers] = React.useState([]);
-    
-    const getPosts = async () => {
-        const response = await fetch('https://jsonplaceholder.typicode.com/posts');
-        const data = await response.json();
-        setUsers(data.reduce((acc, value) => {
-            if (!(value.userId in acc))
-                return [...acc,value.userId]
-            return acc
-        }))
-        console.log(users);
-        setPosts(data.slice(1,10));
-        
-    }
-    
-    React.useEffect(() => {
-        console.log("Компонент создан");
-        getPosts();
-        return () => {console.log("Компонент удален");setPosts([])};
-    },[])
-    
-    return <div><ol>{posts.map(post => <li id={post.id}>{post.title}</li>)}</ol></div>
 }
 
 function App() {
-    const [tracker,setTracker] = React.useState(false);
+    const [showClock, setShowClock] = React.useState(true);
-    const [dataFetcher,setDataFetcher] = React.useState(false);
     
 	return (
 		<>
-			<h1>Hello, React!</h1>
+			<h1>Домашнее задание: жизненый цикл</h1>
-            <Clock />
+            <button onClick={()=> setShowClock(!showClock)}>
-            <Clock2 />
+                {showClock ? 'Скрыть часы' : 'Показать часы' }
-            <button onClick={() => setTracker(!tracker)}>Показать/Скрыть трекер</button>
+            </button>
-            { tracker && <MouseTracker /> }
+            {showClock && <RandomUser />}
-            <button onClick={() => setDataFetcher(!dataFetcher)}>Показать/Скрыть посты</button>
-            { dataFetcher && <DataFetcher /> }
 		</>
 	)
 }

src/App.module.scss

@@ -1,11 +0,0 @@
-.container {
-    width: 300px;
-    height: 200px;
-    border: 2px dashed grey;
-    margin: 10px;
-    text-align: center;
-    p {
-        margin-top: 20%;
-    }
-}
-

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>
 )