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need help TimerControl

Graf15 2 tahun lalu
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0420787cb1

+ 23 - 0
react/react_22_jsx/.gitignore

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+# See https://help.github.com/articles/ignoring-files/ for more about ignoring files.
+
+# dependencies
+/node_modules
+/.pnp
+.pnp.js
+
+# testing
+/coverage
+
+# production
+/build
+
+# misc
+.DS_Store
+.env.local
+.env.development.local
+.env.test.local
+.env.production.local
+
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*

+ 70 - 0
react/react_22_jsx/README.md

@@ -0,0 +1,70 @@
+# Getting Started with Create React App
+
+This project was bootstrapped with [Create React App](https://github.com/facebook/create-react-app).
+
+## Available Scripts
+
+In the project directory, you can run:
+
+### `npm start`
+
+Runs the app in the development mode.\
+Open [http://localhost:3000](http://localhost:3000) to view it in your browser.
+
+The page will reload when you make changes.\
+You may also see any lint errors in the console.
+
+### `npm test`
+
+Launches the test runner in the interactive watch mode.\
+See the section about [running tests](https://facebook.github.io/create-react-app/docs/running-tests) for more information.
+
+### `npm run build`
+
+Builds the app for production to the `build` folder.\
+It correctly bundles React in production mode and optimizes the build for the best performance.
+
+The build is minified and the filenames include the hashes.\
+Your app is ready to be deployed!
+
+See the section about [deployment](https://facebook.github.io/create-react-app/docs/deployment) for more information.
+
+### `npm run eject`
+
+**Note: this is a one-way operation. Once you `eject`, you can't go back!**
+
+If you aren't satisfied with the build tool and configuration choices, you can `eject` at any time. This command will remove the single build dependency from your project.
+
+Instead, it will copy all the configuration files and the transitive dependencies (webpack, Babel, ESLint, etc) right into your project so you have full control over them. All of the commands except `eject` will still work, but they will point to the copied scripts so you can tweak them. At this point you're on your own.
+
+You don't have to ever use `eject`. The curated feature set is suitable for small and middle deployments, and you shouldn't feel obligated to use this feature. However we understand that this tool wouldn't be useful if you couldn't customize it when you are ready for it.
+
+## Learn More
+
+You can learn more in the [Create React App documentation](https://facebook.github.io/create-react-app/docs/getting-started).
+
+To learn React, check out the [React documentation](https://reactjs.org/).
+
+### Code Splitting
+
+This section has moved here: [https://facebook.github.io/create-react-app/docs/code-splitting](https://facebook.github.io/create-react-app/docs/code-splitting)
+
+### Analyzing the Bundle Size
+
+This section has moved here: [https://facebook.github.io/create-react-app/docs/analyzing-the-bundle-size](https://facebook.github.io/create-react-app/docs/analyzing-the-bundle-size)
+
+### Making a Progressive Web App
+
+This section has moved here: [https://facebook.github.io/create-react-app/docs/making-a-progressive-web-app](https://facebook.github.io/create-react-app/docs/making-a-progressive-web-app)
+
+### Advanced Configuration
+
+This section has moved here: [https://facebook.github.io/create-react-app/docs/advanced-configuration](https://facebook.github.io/create-react-app/docs/advanced-configuration)
+
+### Deployment
+
+This section has moved here: [https://facebook.github.io/create-react-app/docs/deployment](https://facebook.github.io/create-react-app/docs/deployment)
+
+### `npm run build` fails to minify
+
+This section has moved here: [https://facebook.github.io/create-react-app/docs/troubleshooting#npm-run-build-fails-to-minify](https://facebook.github.io/create-react-app/docs/troubleshooting#npm-run-build-fails-to-minify)

File diff ditekan karena terlalu besar
+ 29249 - 0
react/react_22_jsx/package-lock.json


+ 38 - 0
react/react_22_jsx/package.json

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+{
+  "name": "react_22_jsx",
+  "version": "0.1.0",
+  "private": true,
+  "dependencies": {
+    "@testing-library/jest-dom": "^5.16.5",
+    "@testing-library/react": "^13.4.0",
+    "@testing-library/user-event": "^13.5.0",
+    "react": "^18.2.0",
+    "react-dom": "^18.2.0",
+    "react-scripts": "5.0.1",
+    "web-vitals": "^2.1.4"
+  },
+  "scripts": {
+    "start": "react-scripts start",
+    "build": "react-scripts build",
+    "test": "react-scripts test",
+    "eject": "react-scripts eject"
+  },
+  "eslintConfig": {
+    "extends": [
+      "react-app",
+      "react-app/jest"
+    ]
+  },
+  "browserslist": {
+    "production": [
+      ">0.2%",
+      "not dead",
+      "not op_mini all"
+    ],
+    "development": [
+      "last 1 chrome version",
+      "last 1 firefox version",
+      "last 1 safari version"
+    ]
+  }
+}

TEMPAT SAMPAH
react/react_22_jsx/public/favicon.ico


+ 43 - 0
react/react_22_jsx/public/index.html

@@ -0,0 +1,43 @@
+<!DOCTYPE html>
+<html lang="en">
+  <head>
+    <meta charset="utf-8" />
+    <link rel="icon" href="%PUBLIC_URL%/favicon.ico" />
+    <meta name="viewport" content="width=device-width, initial-scale=1" />
+    <meta name="theme-color" content="#000000" />
+    <meta
+      name="description"
+      content="Web site created using create-react-app"
+    />
+    <link rel="apple-touch-icon" href="%PUBLIC_URL%/logo192.png" />
+    <!--
+      manifest.json provides metadata used when your web app is installed on a
+      user's mobile device or desktop. See https://developers.google.com/web/fundamentals/web-app-manifest/
+    -->
+    <link rel="manifest" href="%PUBLIC_URL%/manifest.json" />
+    <!--
+      Notice the use of %PUBLIC_URL% in the tags above.
+      It will be replaced with the URL of the `public` folder during the build.
+      Only files inside the `public` folder can be referenced from the HTML.
+
+      Unlike "/favicon.ico" or "favicon.ico", "%PUBLIC_URL%/favicon.ico" will
+      work correctly both with client-side routing and a non-root public URL.
+      Learn how to configure a non-root public URL by running `npm run build`.
+    -->
+    <title>React App</title>
+  </head>
+  <body>
+    <noscript>You need to enable JavaScript to run this app.</noscript>
+    <div id="root"></div>
+    <!--
+      This HTML file is a template.
+      If you open it directly in the browser, you will see an empty page.
+
+      You can add webfonts, meta tags, or analytics to this file.
+      The build step will place the bundled scripts into the <body> tag.
+
+      To begin the development, run `npm start` or `yarn start`.
+      To create a production bundle, use `npm run build` or `yarn build`.
+    -->
+  </body>
+</html>

TEMPAT SAMPAH
react/react_22_jsx/public/logo192.png


TEMPAT SAMPAH
react/react_22_jsx/public/logo512.png


+ 25 - 0
react/react_22_jsx/public/manifest.json

@@ -0,0 +1,25 @@
+{
+  "short_name": "React App",
+  "name": "Create React App Sample",
+  "icons": [
+    {
+      "src": "favicon.ico",
+      "sizes": "64x64 32x32 24x24 16x16",
+      "type": "image/x-icon"
+    },
+    {
+      "src": "logo192.png",
+      "type": "image/png",
+      "sizes": "192x192"
+    },
+    {
+      "src": "logo512.png",
+      "type": "image/png",
+      "sizes": "512x512"
+    }
+  ],
+  "start_url": ".",
+  "display": "standalone",
+  "theme_color": "#000000",
+  "background_color": "#ffffff"
+}

+ 3 - 0
react/react_22_jsx/public/robots.txt

@@ -0,0 +1,3 @@
+# https://www.robotstxt.org/robotstxt.html
+User-agent: *
+Disallow:

+ 46 - 0
react/react_22_jsx/src/App.css

@@ -0,0 +1,46 @@
+.App {
+  text-align: center;
+}
+
+.App-logo {
+  height: 40vmin;
+  pointer-events: none;
+}
+
+@media (prefers-reduced-motion: no-preference) {
+  .App-logo {
+    animation: App-logo-spin infinite 20s linear;
+  }
+}
+
+.App-header {
+  background-color: #282c34;
+  min-height: 100vh;
+  display: flex;
+  flex-direction: column;
+  align-items: center;
+  justify-content: center;
+  font-size: calc(10px + 2vmin);
+  color: white;
+}
+
+.App-link {
+  color: #61dafb;
+}
+
+@keyframes App-logo-spin {
+  from {
+    transform: rotate(0deg);
+  }
+  to {
+    transform: rotate(360deg);
+  }
+}
+
+.red {
+  background-color: rgb(254, 166, 166);
+}
+
+.green {
+  background-color: rgb(209, 255, 141);
+}

+ 337 - 0
react/react_22_jsx/src/App.js

@@ -0,0 +1,337 @@
+import logo from './logo.svg';
+import './App.css';
+import React, {useEffect, useState, useRef} from 'react';
+
+const MyDiv = () => {
+    return (
+        <div>
+            Привет-привет!
+            <input />
+        </div>
+        )
+}
+
+const _ = React.createElement
+
+const MyDivNoJSX = () => {
+    return _('div', {}, 
+                 "Привет-привет!",
+                 _('input'))
+}
+
+const MyDivNoJSX2 = () => {
+    return _('div', {children: [  "Привет-привет!", _('input')]})
+}
+
+console.log(<div id="id1" style={{color: 'red'}}>
+                потомки
+                <input/>
+            </div>)
+
+console.log(<div id="id1" style={{color: 'red'}} children={[
+                "потомки",<input/>]} /> )
+console.log(<MyDiv />)
+
+const TwoDivs = () =>
+<div>
+    <MyDiv />
+    <MyDiv />
+</div>
+
+const Add = ({a=100,b=1000}) =>
+<div>
+    a + b = {a} + {b} = {+a + +b}
+</div>
+
+const BlockOfTextWithHeader = ({children,title='No Title'}) =>
+<>
+    <h2>{title}</h2>
+    <p>
+        {children}
+    </p>
+</>
+
+const arr = ["Див 1", "Див 2"]
+const data = [
+    {children: '1111',title: 'адын-адын'},
+    {children: '2222',title: 'два-два'},
+    {children: '3333',title: 'тры-тры'},
+]
+
+const Counter = () => {
+    const [count, setCount] = useState(10)
+    console.log(count)
+    return (<button onClick={() => setCount(count +1)}>
+                    {count}
+            </button>)
+}
+
+const TextLength = ({text}) => <h1>{text.length}</h1>
+
+const Input = () => {
+    const [text, setText] = useState('testtest')
+    return (
+        <div>
+            <input value={text} 
+                onChange={e => setText(e.target.value.toUpperCase())}/>
+            <TextLength text={text} />
+        </div>
+    )
+}
+
+const LoginForm = ({onLogin}) => {
+  //тут надо два состояния - для логина и для пароля;
+  const [stateLogin, setStateLogin] = useState("")
+  const [statePass, setStatePass] = useState("")
+  //кнопка логина должна быть disabled если одно из полей пустое
+  const disabled = stateLogin && statePass ? false : true
+  //по клику на кнопку запустить onLogin и передать туда 
+  //текущее состояние login и password
+  return (
+      //<h1>тут вместо h1 должна быть верстка: два инпута и кнопка login</h1>
+      <div>
+          <input
+           value={stateLogin}
+           onChange={e => setStateLogin(e.target.value)}
+           />
+          <input
+           value={statePass}
+           onChange={e => setStatePass(e.target.value)}
+           />
+          <button
+           disabled={disabled}
+           onClick = {() => onLogin(stateLogin, statePass)}
+           >
+           Login</button>
+      </div>
+  )
+}
+
+/*Spoiler
+Реализуйте компонент Spoiler, скрывающий контент и открывающий его по клику. Компонент будет получать 3 пропс:
+header, который будет выводится всегда
+open, может быть true или false, если написать в JSX без значения, это значит open={true}
+вложенный контент, т. е. children, который отображается в открытом состоянии спойлера и не отображается в закрытом
+Изначально компонент имеет состояние переданное через пропс open По клику на <div> в котором будет отображаться header должно меняться состояние на противоположное Обеспечьте условие, которое будет показывать или нет children.*/
+
+const Spoiler = ({ header = "+", open = true, children }) => {
+  //напишите тут код
+  const [getOpen, setOpen] = useState(open)
+
+  return (
+    <>
+      <div onClick={() => {
+        setOpen(!getOpen)
+        console.log(getOpen)
+      }}>
+        {header}
+      </div>
+      {getOpen && children}
+    </>
+  )
+}
+
+ 
+class RangeInput  extends React.Component {
+  
+  constructor(props) {
+    super(props); 
+    this.min = props.min
+    this.max = props.max
+    this.state = {      
+      value: ""
+    };
+  }
+  
+
+  changeValue(e){
+    this.setState({value: +e.target.value})
+  }
+
+  render() {
+   if (this.state.value !== "" && this.state.value < this.min || this.state.value > this.max) {
+    return <input value={this.state.value} onChange={ e => this.changeValue(e)} className= 'red' type='number'/>
+   }
+    return <input value={this.state.value} onChange={ e => this.changeValue(e)} type='number'/>
+  }
+ }
+
+ /*PasswordConfirm
+Реализовать компонент PasswordConfirm, отображающий два <input type='password'/> со следующими возможностями:
+prop min - минимальная длина пароля
+Используйте компонент-класс и setState для отслеживания и валидации совпадения паролей и проверки на длину.Или useState
+По желанию добавьте более хитрые валидации типа проверки на размеры буков и наличие цифр в пароле.*/
+
+class PasswordConfirm extends React.Component {
+  constructor(props){
+    super(props)
+    this.min = props.min
+    this.state = {
+      inputFirstValue: "",
+      inpitSecondValue: ""
+    }
+  }
+
+  changeValue1(e){
+    this.setState({inputFirstValue: e.target.value})
+  }
+  changeValue2(e){
+    this.setState({inpitSecondValue: e.target.value})
+  }
+
+  render() {
+    return (
+      <div>
+        {this.state.inputFirstValue === "" ? <input value={this.state.inputFirstValue} onChange={e => this.changeValue1(e)} ></input>
+          : this.state.inputFirstValue.length < this.min ? <input value={this.state.inputFirstValue} onChange={e => this.changeValue1(e)} className="red"></input>
+            : this.state.inputFirstValue === this.state.inpitSecondValue ? <input value={this.state.inputFirstValue} onChange={e => this.changeValue1(e)} className="green"></input>
+              : <input value={this.state.inputFirstValue} onChange={e => this.changeValue1(e)} ></input>}
+
+        {this.state.inpitSecondValue === "" ? <input value={this.state.inpitSecondValue} onChange={e => this.changeValue2(e)}></input>
+          : this.state.inpitSecondValue.length < this.min ? <input value={this.state.inpitSecondValue} onChange={e => this.changeValue2(e)} className="red"></input>
+            : this.state.inputFirstValue === this.state.inpitSecondValue ? <input value={this.state.inpitSecondValue} onChange={e => this.changeValue2(e)} className="green"></input>
+              : <input value={this.state.inpitSecondValue} onChange={e => this.changeValue2(e)}></input>}
+
+      </div>
+    )
+  }
+  }
+
+  /*Timer
+Напишите компонент, в который передается через props количество секунд, а компонент при этом реализует обратный отсчет раз в секунду уменьшая количество секунд на 1. Останавливается на 0. Добавьте в компонент кнопку паузы.
+Компонент должен отображать часы, минуты и секунды.*/
+
+function Timer({pauseState = true, sec}){
+  const [pause, setPause] = useState(pauseState)
+  const [time, setTime] = useState(sec)
+ 
+  let timeout
+
+   useEffect(() => {
+    if (time > 0 && pause === false) {
+     timeout = setTimeout(() => {
+      console.log(time)
+      setTime(time - 1000)      
+    }, 1000)
+  }
+  })
+
+
+  return (
+    <div>
+    <div>{time/1000}</div>
+    <button onClick={()=>{clearTimeout(timeout); setPause(!pause)}}>пауза</button>
+    </div>
+  )
+}
+
+/*TimerControl
+Напишите компонент, с тремя полями ввода (часы, минуты и секунды) и кнопкой Start, по которой будет стартовать компонент Timer*/
+
+function Timer2({sec=0}){
+  const [pause, setPause] = useState(false)
+  const [time, setTime] = useState(sec)
+  console.log('Timer2' , time)
+
+  useEffect(()=>setTime(sec), [sec])
+ 
+  const timeoutRef = useRef()
+
+   useEffect(() => {
+    if (time > 0 && pause === false) {
+      timeoutRef.current = setTimeout(() => {
+      console.log(time)
+      setTime(time - 1000)      
+    }, 1000)
+    console.log('timeout', timeoutRef.current)
+  }
+  }, [time, pause])
+
+  let pauseButtonText = pause ? "продолжить отсчёт" : "пауза"
+  
+
+  return (
+    <div>
+    <div>{time/1000}</div>
+    <button onClick={()=>{console.log('pause', timeoutRef.current);  clearTimeout(timeoutRef.current); setPause(!pause)}}>{pauseButtonText}</button>
+    </div>
+  )
+}
+
+function TimerControl({f}) {
+  const [hours, setHours] = useState()
+  const [minutes, setMinutes] = useState()
+  const [seconds, setSeconds] = useState()
+
+
+  console.log(seconds)
+  const setTimer = () => {
+
+      console.log(seconds)
+      let value = seconds * 1000
+      console.log(value)
+      console.log(f)
+      f(value)
+    }
+  
+
+
+
+  return(
+  <div>
+    <span>Hours:</span>
+    <input type="number" min={0} max={24} value={hours} onChange={(e)=>setHours(e.target.value)}/>
+    <span>Minutes:</span>
+    <input type="number" min={0} max={60} value={minutes} onChange={(e)=>setMinutes(e.target.value)}/>
+    <span>Seconds:</span>
+    <input type="number" min={0} max={60} value={seconds} onChange={(e)=>setSeconds(e.target.value)}/>
+    <button onClick={setTimer}>START TIMER</button>
+  </div>
+  )
+}
+
+
+function App() {
+const[timer, setTimer] = useState()
+
+console.log('app timer state',timer)
+
+const fCallbackTimer = useRef((value) => setTimer(value))
+console.log("проверка" , fCallbackTimer.current)
+  return (
+    <div className="App">
+      <header className="App-header" >
+        {Math.random() > 0.5 && <div children={`
+                  много
+
+                  много
+
+                  строк`} />}
+        <MyDiv />
+        <MyDivNoJSX />
+      </header>
+      <Spoiler header={<h1>Заголовок</h1>} open>
+        Контент 1
+        <p>
+          лорем ипсум траливали и тп.
+        </p>
+      </Spoiler>
+
+
+      <Spoiler>
+        <h2>Контент 2</h2>
+        <p>
+          лорем ипсум траливали и тп.
+        </p>
+      </Spoiler>
+      <RangeInput min={2} max={10} />
+      <LoginForm onLogin={(l,p) => console.log('LOGIN: ', l, ' PASSWORD: ', p)} />
+      <PasswordConfirm min = {5}/>
+      <Timer sec={50000}/>
+      <Timer2 sec={timer}/>
+      <TimerControl f={fCallbackTimer.current}/>
+    </div>
+  );
+}
+
+export default App;

+ 8 - 0
react/react_22_jsx/src/App.test.js

@@ -0,0 +1,8 @@
+import { render, screen } from '@testing-library/react';
+import App from './App';
+
+test('renders learn react link', () => {
+  render(<App />);
+  const linkElement = screen.getByText(/learn react/i);
+  expect(linkElement).toBeInTheDocument();
+});

+ 13 - 0
react/react_22_jsx/src/index.css

@@ -0,0 +1,13 @@
+body {
+  margin: 0;
+  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen',
+    'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue',
+    sans-serif;
+  -webkit-font-smoothing: antialiased;
+  -moz-osx-font-smoothing: grayscale;
+}
+
+code {
+  font-family: source-code-pro, Menlo, Monaco, Consolas, 'Courier New',
+    monospace;
+}

+ 17 - 0
react/react_22_jsx/src/index.js

@@ -0,0 +1,17 @@
+import React from 'react';
+import ReactDOM from 'react-dom/client';
+import './index.css';
+import App from './App';
+import reportWebVitals from './reportWebVitals';
+
+const root = ReactDOM.createRoot(document.getElementById('root'));
+root.render(
+  <React.StrictMode>
+    <App />
+  </React.StrictMode>
+);
+
+// If you want to start measuring performance in your app, pass a function
+// to log results (for example: reportWebVitals(console.log))
+// or send to an analytics endpoint. Learn more: https://bit.ly/CRA-vitals
+reportWebVitals();

File diff ditekan karena terlalu besar
+ 1 - 0
react/react_22_jsx/src/logo.svg


+ 13 - 0
react/react_22_jsx/src/reportWebVitals.js

@@ -0,0 +1,13 @@
+const reportWebVitals = onPerfEntry => {
+  if (onPerfEntry && onPerfEntry instanceof Function) {
+    import('web-vitals').then(({ getCLS, getFID, getFCP, getLCP, getTTFB }) => {
+      getCLS(onPerfEntry);
+      getFID(onPerfEntry);
+      getFCP(onPerfEntry);
+      getLCP(onPerfEntry);
+      getTTFB(onPerfEntry);
+    });
+  }
+};
+
+export default reportWebVitals;

+ 5 - 0
react/react_22_jsx/src/setupTests.js

@@ -0,0 +1,5 @@
+// jest-dom adds custom jest matchers for asserting on DOM nodes.
+// allows you to do things like:
+// expect(element).toHaveTextContent(/react/i)
+// learn more: https://github.com/testing-library/jest-dom
+import '@testing-library/jest-dom';