Compare commits
2 Commits
| Author | SHA1 | Date | |
|---|---|---|---|
| 23db798577 | |||
| c99a045400 |
Generated
+9
-1256
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Load Diff
+1
-4
@@ -4,13 +4,12 @@
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"version": "0.0.0",
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"type": "module",
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"scripts": {
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"dev": "vite",
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"dev": "vite",
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"build": "vite build",
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"lint": "eslint .",
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"preview": "vite preview"
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},
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"dependencies": {
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"info": "^1.0.0",
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"react": "^19.1.0",
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"react-dom": "^19.1.0"
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},
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@@ -23,8 +22,6 @@
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"eslint-plugin-react-hooks": "^5.2.0",
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"eslint-plugin-react-refresh": "^0.4.19",
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"globals": "^16.0.0",
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"sass": "^1.99.0",
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"sass-embedded": "^1.99.0",
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"vite": "^6.3.5"
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}
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}
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+38
-17
@@ -1,29 +1,50 @@
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import styles from './styles/App.module.scss'
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import React, { useState, useCallback } from 'react'
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import { useState, useReducer } from 'react'
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function CounterButton({label, onClick}) {
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return (
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<button onClick={onClick} className={styles.counter_button}>{label}</button>
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)
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function counterReducer(state, action) {
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switch (action.type) {
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case 'increment':
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return state + 1
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case 'decrement':
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return state - 1
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case 'reset':
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return 0
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case 'set_value':
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return action.value
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default:
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return state
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}
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}
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function CounterDisplay({value}) {
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return (<div className={styles.counter_display}>
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Значение счетчика: <b>{value}</b>
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</div>)
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function Counter() {
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const [count, dispatch] = useReducer(counterReducer,0);
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return (
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<div>
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<span>Счетчик: {count}</span>
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<button onClick={()=> dispatch({type: 'increment'})}>+</button>
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<button onClick={()=> dispatch({type: 'decrement'})}>-</button>
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<button onClick={()=> dispatch({type: 'reset'})}>reset</button>
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<button onClick={()=> dispatch({type: 'set_value', value: 5})}>set 5</button>
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</div>
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)
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}
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function App() {
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const [counter,setCounter] = useState(0);
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const [tasks, setTasks] = useState([])
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const [filter, setFilter] = useState('all')
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const [sortBy,setSortBy] = useState('date')
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const addTask = newTask => {
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setTasks([...tasks,newTask])
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}
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const increment = () => setCounter(prev => prev + 1);
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const decrement = () => setCounter(prev => prev - 1);
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return (
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<>
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<h2>Практика по созданию счетчика с колбэками</h2>
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<CounterButton label="Увеличить" onClick={increment} />
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<CounterButton label="уменьшить" onClick={decrement} />
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<CounterDisplay value={counter} />
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{/* Добавьте тестовый контент для проверки */}
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<h1>Hello, React!</h1>
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<Counter />
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</>
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)
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}
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@@ -0,0 +1,15 @@
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.container {
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/* display: flex;
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flex-direction: column;
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flex-wrap: nowrap;*/
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height: 500px;
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overflow: auto;
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border: 1px solid black;
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}
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.item {
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font-size: 16pt;
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border: 1px dotted gray;
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/*margin: 5px 10px;
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padding: 10px;*/
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border-radius: 5px;
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}
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