├── vite.config.js
├── src
    ├── Hooks
    │   ├── Context
    │   │   ├── Comp2.jsx
    │   │   ├── Comp1.jsx
    │   │   ├── Comp3.jsx
    │   │   └── UseContextHook2.jsx
    │   ├── CallBack
    │   │   ├── Child.jsx
    │   │   └── UseCallBack2.jsx
    │   ├── UseMemo2.jsx
    │   └── UseStateHook.jsx
    ├── main.jsx
    ├── App.jsx
    ├── App.css
    ├── index.css
    └── assets
    │   └── react.svg
├── .gitignore
├── index.html
├── README.md
├── .eslintrc.cjs
├── package.json
└── public
    └── vite.svg


/vite.config.js:
--------------------------------------------------------------------------------
1 | import { defineConfig } from 'vite'
2 | import react from '@vitejs/plugin-react'
3 | 
4 | // https://vitejs.dev/config/
5 | export default defineConfig({
6 |   plugins: [react()],
7 | })
8 | 


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/src/Hooks/Context/Comp2.jsx:
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 1 | import React from 'react'
 2 | import Comp3 from './Comp3'
 3 | 
 4 | const Comp2 = () => {
 5 |   return (
 6 |     <div>
 7 | <Comp3/>
 8 |     </div>
 9 |   )
10 | }
11 | 
12 | export default Comp2


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/src/Hooks/Context/Comp1.jsx:
--------------------------------------------------------------------------------
 1 | import React from 'react'
 2 | import Comp2 from './Comp2'
 3 | 
 4 | const Comp1 = () => {
 5 |   return (
 6 |     <div>
 7 |       <Comp2/>
 8 |     </div>
 9 |   )
10 | }
11 | 
12 | export default Comp1


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/src/main.jsx:
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 1 | import React from 'react'
 2 | import ReactDOM from 'react-dom/client'
 3 | import App from './App.jsx'
 4 | 
 5 | 
 6 | ReactDOM.createRoot(document.getElementById('root')).render(
 7 |   <React.StrictMode>
 8 |     <App />
 9 |   </React.StrictMode>,
10 | )
11 | 


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/src/Hooks/CallBack/Child.jsx:
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 1 | import React,{memo} from 'react'
 2 | 
 3 | function Child({countTwo,setCountTwo}) {
 4 |   console.log("Rendered Child")
 5 |   return (
 6 |     <div>Child
 7 |     </div>
 8 |   )
 9 | }
10 | //first solution is memo Api
11 | export default memo(Child)


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/.gitignore:
--------------------------------------------------------------------------------
 1 | # Logs
 2 | logs
 3 | *.log
 4 | npm-debug.log*
 5 | yarn-debug.log*
 6 | yarn-error.log*
 7 | pnpm-debug.log*
 8 | lerna-debug.log*
 9 | 
10 | node_modules
11 | dist
12 | dist-ssr
13 | *.local
14 | 
15 | # Editor directories and files
16 | .vscode/*
17 | !.vscode/extensions.json
18 | .idea
19 | .DS_Store
20 | *.suo
21 | *.ntvs*
22 | *.njsproj
23 | *.sln
24 | *.sw?
25 | 


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/src/Hooks/Context/Comp3.jsx:
--------------------------------------------------------------------------------
 1 | import React, { useContext } from 'react'
 2 | import { nameContext, nameContext2 } from './UseContextHook2'
 3 | 
 4 | function Comp3() {
 5 |   const name = useContext(nameContext)
 6 |   const name2 = useContext(nameContext2)
 7 |   return (
 8 | 
 9 |     <div>
10 |       <h2>{name}</h2>
11 |       <h2>{name2}</h2>
12 |     </div>
13 |   )
14 | }
15 | 
16 | export default Comp3


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/src/App.jsx:
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 1 | import React from 'react'
 2 | import UseContextHook2 from './Hooks/Context/UseContextHook2'
 3 | // import UseMemo2 from './Hooks/UseMemo2.jsx'
 4 | // import UseCallBack2 from './Hooks/CallBack/UseCallBack2'
 5 | function App() {
 6 |   return (
 7 |     <div>
 8 |       <UseContextHook2/>
 9 |       {/* <UseCallBack2/> */}
10 |       {/* <UseMemo2/> */}
11 |     </div>
12 |   )
13 | }
14 | 
15 | export default App


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/index.html:
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 1 | <!doctype html>
 2 | <html lang="en">
 3 |   <head>
 4 |     <meta charset="UTF-8" />
 5 |     <link rel="icon" type="image/svg+xml" href="/vite.svg" />
 6 |     <meta name="viewport" content="width=device-width, initial-scale=1.0" />
 7 |     <title>Vite + React</title>
 8 |   </head>
 9 |   <body>
10 |     <div id="root"></div>
11 |     <script type="module" src="/src/main.jsx"></script>
12 |   </body>
13 | </html>
14 | 


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/README.md:
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1 | # React + Vite
2 | 
3 | This template provides a minimal setup to get React working in Vite with HMR and some ESLint rules.
4 | 
5 | Currently, two official plugins are available:
6 | 
7 | - [@vitejs/plugin-react](https://github.com/vitejs/vite-plugin-react/blob/main/packages/plugin-react/README.md) uses [Babel](https://babeljs.io/) for Fast Refresh
8 | - [@vitejs/plugin-react-swc](https://github.com/vitejs/vite-plugin-react-swc) uses [SWC](https://swc.rs/) for Fast Refresh
9 | 


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/.eslintrc.cjs:
--------------------------------------------------------------------------------
 1 | module.exports = {
 2 |   root: true,
 3 |   env: { browser: true, es2020: true },
 4 |   extends: [
 5 |     'eslint:recommended',
 6 |     'plugin:react/recommended',
 7 |     'plugin:react/jsx-runtime',
 8 |     'plugin:react-hooks/recommended',
 9 |   ],
10 |   ignorePatterns: ['dist', '.eslintrc.cjs'],
11 |   parserOptions: { ecmaVersion: 'latest', sourceType: 'module' },
12 |   settings: { react: { version: '18.2' } },
13 |   plugins: ['react-refresh'],
14 |   rules: {
15 |     'react/jsx-no-target-blank': 'off',
16 |     'react-refresh/only-export-components': [
17 |       'warn',
18 |       { allowConstantExport: true },
19 |     ],
20 |   },
21 | }
22 | 


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/package.json:
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 1 | {
 2 |   "name": "hooks",
 3 |   "private": true,
 4 |   "version": "0.0.0",
 5 |   "type": "module",
 6 |   "scripts": {
 7 |     "dev": "vite",
 8 |     "build": "vite build",
 9 |     "lint": "eslint . --ext js,jsx --report-unused-disable-directives --max-warnings 0",
10 |     "preview": "vite preview"
11 |   },
12 |   "dependencies": {
13 |     "react": "^18.2.0",
14 |     "react-dom": "^18.2.0"
15 |   },
16 |   "devDependencies": {
17 |     "@types/react": "^18.2.56",
18 |     "@types/react-dom": "^18.2.19",
19 |     "@vitejs/plugin-react": "^4.2.1",
20 |     "eslint": "^8.56.0",
21 |     "eslint-plugin-react": "^7.33.2",
22 |     "eslint-plugin-react-hooks": "^4.6.0",
23 |     "eslint-plugin-react-refresh": "^0.4.5",
24 |     "vite": "^5.1.4"
25 |   }
26 | }
27 | 


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/src/App.css:
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 1 | #root {
 2 |   max-width: 1280px;
 3 |   margin: 0 auto;
 4 |   padding: 2rem;
 5 |   text-align: center;
 6 | }
 7 | 
 8 | .logo {
 9 |   height: 6em;
10 |   padding: 1.5em;
11 |   will-change: filter;
12 |   transition: filter 300ms;
13 | }
14 | .logo:hover {
15 |   filter: drop-shadow(0 0 2em #646cffaa);
16 | }
17 | .logo.react:hover {
18 |   filter: drop-shadow(0 0 2em #61dafbaa);
19 | }
20 | 
21 | @keyframes logo-spin {
22 |   from {
23 |     transform: rotate(0deg);
24 |   }
25 |   to {
26 |     transform: rotate(360deg);
27 |   }
28 | }
29 | 
30 | @media (prefers-reduced-motion: no-preference) {
31 |   a:nth-of-type(2) .logo {
32 |     animation: logo-spin infinite 20s linear;
33 |   }
34 | }
35 | 
36 | .card {
37 |   padding: 2em;
38 | }
39 | 
40 | .read-the-docs {
41 |   color: #888;
42 | }
43 | 


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/src/Hooks/Context/UseContextHook2.jsx:
--------------------------------------------------------------------------------
 1 | import React, { createContext } from 'react'
 2 | import Comp3 from './Comp3'
 3 | export const nameContext = createContext()
 4 | export const nameContext2 = createContext()
 5 | function UseContextHook2() {
 6 |     //we can avoid props drilling then use context api 
 7 |     //context api global context make
 8 |     //It can be used together with the useState Hook to share state between deeply nested components more easily than with useState alone.
 9 |   return (
10 |     <div>
11 |         <nameContext.Provider value={"ali"}>
12 |         <nameContext2.Provider value={"raza"}>
13 |             
14 |             <Comp3/>
15 | 
16 |         </nameContext2.Provider>
17 |         </nameContext.Provider>
18 |     </div>
19 |   )
20 | }
21 | 
22 | export default UseContextHook2


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/src/Hooks/CallBack/UseCallBack2.jsx:
--------------------------------------------------------------------------------
 1 | import React,{useCallback, useState} from 'react'
 2 | import Child from './Child'
 3 | function UseCallBack2() {
 4 |   //when click btn child component call why
 5 |   //first solution is memo Api
 6 |   //but memo api not work whe child component pass a props
 7 |   //we use a hook useCallback when props pass
 8 |   const [count, setCount] = useState(0)
 9 | 
10 |   const [countTwo,setCountTwo] = useState([])
11 | 
12 |   const incrementOne = () =>{
13 |     setCount(count + 1)
14 | }
15 | const fn = useCallback(() =>{
16 |   console.log("hello")
17 | },[countTwo])
18 |   return (
19 |     <div>
20 |       <Child countTw0={countTwo} setCountTwo={setCountTwo} fn={fn}/>
21 |       <button onClick={incrementOne}>One</button>
22 | {count}
23 |     </div>
24 |   )
25 | }
26 | 
27 | export default UseCallBack2


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/src/Hooks/UseMemo2.jsx:
--------------------------------------------------------------------------------
 1 | import React, { useMemo, useState } from 'react'
 2 | //why One btn impact or effect Two btn but both or separated but one btn impact two and loading
 3 | function UseMemo2() {
 4 |     const [count, setCount] = useState(0)
 5 |     const [countTwo,setCountTwo] = useState(0)
 6 | 
 7 |     const incrementOne = () =>{
 8 |         setCount(count + 1)
 9 |     }
10 |     const incrementTwo = () =>{
11 |         setCountTwo(countTwo + 1)
12 |     }
13 | 
14 |     const isEven = useMemo(() => {
15 |         console.warn("print One");
16 |         let i = 0;
17 |         while (i < 2000000000) i++;
18 |         return count % 2 === 0;
19 |       }, [count]);
20 | //     const isEven =()=> {
21 | // console.warn("print")
22 | // let i=0;
23 | // while (i<2000000000) i++;
24 | // return count%2===0;
25 | 
26 | //     }
27 |   return (
28 |     <div>
29 | <button onClick={incrementOne}>
30 |     One
31 | </button>
32 | {count}
33 | <span>{isEven ? "Even": "odd"}</span>
34 | {/* <span>{isEven() ? "Even": "odd"}</span> */}
35 | <button onClick={incrementTwo}> 
36 | Two
37 | </button>
38 | {countTwo}
39 |     </div>
40 |   )
41 | }
42 | 
43 | export default UseMemo2


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/src/Hooks/UseStateHook.jsx:
--------------------------------------------------------------------------------
 1 | import React from 'react'
 2 | import { useState } from 'react'
 3 | function UseStateHook() {
 4 |     // Declaring a state variable is as simple as calling useState with some initial state value, like so: useState(initialStateValue).
 5 | 
 6 | 
 7 |     const [age, setAge] = useState(19)
 8 |     const handleClick = () =>{
 9 |         console.log('Button Clicked')
10 |         setAge(age + 1)
11 |     }
12 |   
13 |     const [ageNew, setAgeNew] = useState(19)
14 |     const [siblingsNum, setSiblingsNum] = 
15 |       useState(10)
16 |   
17 |     const handleAge = () => setAgeNew(age + 1)
18 |     const handleSiblingsNum = () => 
19 |         setSiblingsNum(siblingsNum + 1)
20 |     return (
21 |       <div>
22 |         Today I am {age} Years of Age
23 |         <div>
24 |           <button onClick={handleClick}>Get older! </button>
25 |         </div>
26 | 
27 | 
28 |         <p>Today I am {ageNew} Years of Age</p>
29 |       <p>I have {siblingsNum} siblings</p>
30 | 
31 |       <div>
32 |         <button onClick={handleAge}>
33 |           Get older! 
34 |         </button>
35 |         <button onClick={handleSiblingsNum}>
36 |             More siblings! 
37 |         </button>
38 |       </div>
39 |       </div>
40 |     )
41 | }
42 | 
43 | export default UseStateHook


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/public/vite.svg:
--------------------------------------------------------------------------------
1 | <svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" aria-hidden="true" role="img" class="iconify iconify--logos" width="31.88" height="32" preserveAspectRatio="xMidYMid meet" viewBox="0 0 256 257"><defs><linearGradient id="IconifyId1813088fe1fbc01fb466" x1="-.828%" x2="57.636%" y1="7.652%" y2="78.411%"><stop offset="0%" stop-color="#41D1FF"></stop><stop offset="100%" stop-color="#BD34FE"></stop></linearGradient><linearGradient id="IconifyId1813088fe1fbc01fb467" x1="43.376%" x2="50.316%" y1="2.242%" y2="89.03%"><stop offset="0%" stop-color="#FFEA83"></stop><stop offset="8.333%" stop-color="#FFDD35"></stop><stop offset="100%" stop-color="#FFA800"></stop></linearGradient></defs><path fill="url(#IconifyId1813088fe1fbc01fb466)" d="M255.153 37.938L134.897 252.976c-2.483 4.44-8.862 4.466-11.382.048L.875 37.958c-2.746-4.814 1.371-10.646 6.827-9.67l120.385 21.517a6.537 6.537 0 0 0 2.322-.004l117.867-21.483c5.438-.991 9.574 4.796 6.877 9.62Z"></path><path fill="url(#IconifyId1813088fe1fbc01fb467)" d="M185.432.063L96.44 17.501a3.268 3.268 0 0 0-2.634 3.014l-5.474 92.456a3.268 3.268 0 0 0 3.997 3.378l24.777-5.718c2.318-.535 4.413 1.507 3.936 3.838l-7.361 36.047c-.495 2.426 1.782 4.5 4.151 3.78l15.304-4.649c2.372-.72 4.652 1.36 4.15 3.788l-11.698 56.621c-.732 3.542 3.979 5.473 5.943 2.437l1.313-2.028l72.516-144.72c1.215-2.423-.88-5.186-3.54-4.672l-25.505 4.922c-2.396.462-4.435-1.77-3.759-4.114l16.646-57.705c.677-2.35-1.37-4.583-3.769-4.113Z"></path></svg>


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/src/index.css:
--------------------------------------------------------------------------------
 1 | :root {
 2 |   font-family: Inter, system-ui, Avenir, Helvetica, Arial, sans-serif;
 3 |   line-height: 1.5;
 4 |   font-weight: 400;
 5 | 
 6 |   color-scheme: light dark;
 7 |   color: rgba(255, 255, 255, 0.87);
 8 |   background-color: #242424;
 9 | 
10 |   font-synthesis: none;
11 |   text-rendering: optimizeLegibility;
12 |   -webkit-font-smoothing: antialiased;
13 |   -moz-osx-font-smoothing: grayscale;
14 | }
15 | 
16 | a {
17 |   font-weight: 500;
18 |   color: #646cff;
19 |   text-decoration: inherit;
20 | }
21 | a:hover {
22 |   color: #535bf2;
23 | }
24 | 
25 | body {
26 |   margin: 0;
27 |   display: flex;
28 |   place-items: center;
29 |   min-width: 320px;
30 |   min-height: 100vh;
31 | }
32 | 
33 | h1 {
34 |   font-size: 3.2em;
35 |   line-height: 1.1;
36 | }
37 | 
38 | button {
39 |   border-radius: 8px;
40 |   border: 1px solid transparent;
41 |   padding: 0.6em 1.2em;
42 |   font-size: 1em;
43 |   font-weight: 500;
44 |   font-family: inherit;
45 |   background-color: #1a1a1a;
46 |   cursor: pointer;
47 |   transition: border-color 0.25s;
48 | }
49 | button:hover {
50 |   border-color: #646cff;
51 | }
52 | button:focus,
53 | button:focus-visible {
54 |   outline: 4px auto -webkit-focus-ring-color;
55 | }
56 | 
57 | @media (prefers-color-scheme: light) {
58 |   :root {
59 |     color: #213547;
60 |     background-color: #ffffff;
61 |   }
62 |   a:hover {
63 |     color: #747bff;
64 |   }
65 |   button {
66 |     background-color: #f9f9f9;
67 |   }
68 | }
69 | 


--------------------------------------------------------------------------------
/src/assets/react.svg:
--------------------------------------------------------------------------------
1 | <svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" aria-hidden="true" role="img" class="iconify iconify--logos" width="35.93" height="32" preserveAspectRatio="xMidYMid meet" viewBox="0 0 256 228"><path fill="#00D8FF" d="M210.483 73.824a171.49 171.49 0 0 0-8.24-2.597c.465-1.9.893-3.777 1.273-5.621c6.238-30.281 2.16-54.676-11.769-62.708c-13.355-7.7-35.196.329-57.254 19.526a171.23 171.23 0 0 0-6.375 5.848a155.866 155.866 0 0 0-4.241-3.917C100.759 3.829 77.587-4.822 63.673 3.233C50.33 10.957 46.379 33.89 51.995 62.588a170.974 170.974 0 0 0 1.892 8.48c-3.28.932-6.445 1.924-9.474 2.98C17.309 83.498 0 98.307 0 113.668c0 15.865 18.582 31.778 46.812 41.427a145.52 145.52 0 0 0 6.921 2.165a167.467 167.467 0 0 0-2.01 9.138c-5.354 28.2-1.173 50.591 12.134 58.266c13.744 7.926 36.812-.22 59.273-19.855a145.567 145.567 0 0 0 5.342-4.923a168.064 168.064 0 0 0 6.92 6.314c21.758 18.722 43.246 26.282 56.54 18.586c13.731-7.949 18.194-32.003 12.4-61.268a145.016 145.016 0 0 0-1.535-6.842c1.62-.48 3.21-.974 4.76-1.488c29.348-9.723 48.443-25.443 48.443-41.52c0-15.417-17.868-30.326-45.517-39.844Zm-6.365 70.984c-1.4.463-2.836.91-4.3 1.345c-3.24-10.257-7.612-21.163-12.963-32.432c5.106-11 9.31-21.767 12.459-31.957c2.619.758 5.16 1.557 7.61 2.4c23.69 8.156 38.14 20.213 38.14 29.504c0 9.896-15.606 22.743-40.946 31.14Zm-10.514 20.834c2.562 12.94 2.927 24.64 1.23 33.787c-1.524 8.219-4.59 13.698-8.382 15.893c-8.067 4.67-25.32-1.4-43.927-17.412a156.726 156.726 0 0 1-6.437-5.87c7.214-7.889 14.423-17.06 21.459-27.246c12.376-1.098 24.068-2.894 34.671-5.345a134.17 134.17 0 0 1 1.386 6.193ZM87.276 214.515c-7.882 2.783-14.16 2.863-17.955.675c-8.075-4.657-11.432-22.636-6.853-46.752a156.923 156.923 0 0 1 1.869-8.499c10.486 2.32 22.093 3.988 34.498 4.994c7.084 9.967 14.501 19.128 21.976 27.15a134.668 134.668 0 0 1-4.877 4.492c-9.933 8.682-19.886 14.842-28.658 17.94ZM50.35 144.747c-12.483-4.267-22.792-9.812-29.858-15.863c-6.35-5.437-9.555-10.836-9.555-15.216c0-9.322 13.897-21.212 37.076-29.293c2.813-.98 5.757-1.905 8.812-2.773c3.204 10.42 7.406 21.315 12.477 32.332c-5.137 11.18-9.399 22.249-12.634 32.792a134.718 134.718 0 0 1-6.318-1.979Zm12.378-84.26c-4.811-24.587-1.616-43.134 6.425-47.789c8.564-4.958 27.502 2.111 47.463 19.835a144.318 144.318 0 0 1 3.841 3.545c-7.438 7.987-14.787 17.08-21.808 26.988c-12.04 1.116-23.565 2.908-34.161 5.309a160.342 160.342 0 0 1-1.76-7.887Zm110.427 27.268a347.8 347.8 0 0 0-7.785-12.803c8.168 1.033 15.994 2.404 23.343 4.08c-2.206 7.072-4.956 14.465-8.193 22.045a381.151 381.151 0 0 0-7.365-13.322Zm-45.032-43.861c5.044 5.465 10.096 11.566 15.065 18.186a322.04 322.04 0 0 0-30.257-.006c4.974-6.559 10.069-12.652 15.192-18.18ZM82.802 87.83a323.167 323.167 0 0 0-7.227 13.238c-3.184-7.553-5.909-14.98-8.134-22.152c7.304-1.634 15.093-2.97 23.209-3.984a321.524 321.524 0 0 0-7.848 12.897Zm8.081 65.352c-8.385-.936-16.291-2.203-23.593-3.793c2.26-7.3 5.045-14.885 8.298-22.6a321.187 321.187 0 0 0 7.257 13.246c2.594 4.48 5.28 8.868 8.038 13.147Zm37.542 31.03c-5.184-5.592-10.354-11.779-15.403-18.433c4.902.192 9.899.29 14.978.29c5.218 0 10.376-.117 15.453-.343c-4.985 6.774-10.018 12.97-15.028 18.486Zm52.198-57.817c3.422 7.8 6.306 15.345 8.596 22.52c-7.422 1.694-15.436 3.058-23.88 4.071a382.417 382.417 0 0 0 7.859-13.026a347.403 347.403 0 0 0 7.425-13.565Zm-16.898 8.101a358.557 358.557 0 0 1-12.281 19.815a329.4 329.4 0 0 1-23.444.823c-7.967 0-15.716-.248-23.178-.732a310.202 310.202 0 0 1-12.513-19.846h.001a307.41 307.41 0 0 1-10.923-20.627a310.278 310.278 0 0 1 10.89-20.637l-.001.001a307.318 307.318 0 0 1 12.413-19.761c7.613-.576 15.42-.876 23.31-.876H128c7.926 0 15.743.303 23.354.883a329.357 329.357 0 0 1 12.335 19.695a358.489 358.489 0 0 1 11.036 20.54a329.472 329.472 0 0 1-11 20.722Zm22.56-122.124c8.572 4.944 11.906 24.881 6.52 51.026c-.344 1.668-.73 3.367-1.15 5.09c-10.622-2.452-22.155-4.275-34.23-5.408c-7.034-10.017-14.323-19.124-21.64-27.008a160.789 160.789 0 0 1 5.888-5.4c18.9-16.447 36.564-22.941 44.612-18.3ZM128 90.808c12.625 0 22.86 10.235 22.86 22.86s-10.235 22.86-22.86 22.86s-22.86-10.235-22.86-22.86s10.235-22.86 22.86-22.86Z"></path></svg>


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