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Author SHA1 Message Date
Anish Lakhwara bdc6551783 exercise 2.5 2023-05-16 00:15:43 +10:00
Anish Lakhwara 2850cda94b exercise 2.4 2023-05-15 23:47:23 +10:00
Anish Lakhwara 10daad2d87 exercise 2.3 2023-05-15 23:44:23 +10:00
Anish Lakhwara b3572cb595 exercise 2.2 2023-05-15 23:43:39 +10:00
Anish Lakhwara 69ab203c6c exercise 1.14 2023-05-15 22:22:29 +10:00
Anish Lakhwara 030b96edad exercise 1.13 2023-05-15 22:12:23 +10:00
Anish Lakhwara 48736417d6 exercise 1.12 2023-05-15 22:05:49 +10:00
Anish Lakhwara 9b4da062a3 exercise 1.11 2023-05-15 21:33:02 +10:00
Anish Lakhwara a62d2f712a exercise 1.10 2023-05-15 21:32:23 +10:00
Anish Lakhwara d301767634 exercise 1.9 2023-05-15 21:19:12 +10:00
Anish Lakhwara 3bb4f34611 exercise 1.8 2023-05-15 21:17:29 +10:00
Anish Lakhwara 5f6a727ee6 exercise 1.7 2023-05-15 21:17:10 +10:00
Anish Lakhwara 711764b874 exercise 1.6 2023-05-15 21:14:50 +10:00
Anish Lakhwara c72d4615d0 Component State checkpoint 2023-05-15 19:36:02 +10:00
Anish Lakhwara 08b2a6caac exercise 1.5 2023-04-29 14:25:23 +10:00
Anish Lakhwara bbcea9fd36 exercise 1.4 2023-04-29 14:23:10 +10:00
18 changed files with 17662 additions and 36 deletions

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const Header = (props) => {
return (
<h1>
{props.course}
</h1>
)
}
import { useState } from 'react'
const Part = (props) => {
const Button = ({ handler, text }) => {
return (
<>
<p>
{props.part} {props.exercise}
</p>
<button onClick={handler}>{text}</button>
</>
)
}
const Content = (props) => {
const HighScore = ({ highScore, anecdotes, scores }) => {
if (highScore === -1) {
return (
<p>No Highest Scoring Annecdote</p>
)
}
return (
<>
<Part part={props.part1} exercise={props.exercises1} />
<Part part={props.part2} exercise={props.exercises2} />
<Part part={props.part3} exercise={props.exercises3} />
</>
)
}
const Total = (props) => {
return (
<>
<p>
Number of exercises {props.total}
</p>
<h2>The Highest Voted Annectdote</h2>
<p>It has {scores[highScore]} votes</p>
<p>{anecdotes[highScore]}</p>
</>
)
}
const App = () => {
const course = 'Half Stack application development'
const part1 = 'Fundamentals of React'
const exercises1 = 10
const part2 = 'Using props to pass data'
const exercises2 = 7
const part3 = 'State of a component'
const exercises3 = 14
const total = exercises3 + exercises2 + exercises1
const anecdotes = [
'If it hurts, do it more often.',
'Adding manpower to a late software project makes it later!',
'The first 90 percent of the code accounts for the first 10 percent of the development time...The remaining 10 percent of the code accounts for the other 90 percent of the development time.',
'Any fool can write code that a computer can understand. Good programmers write code that humans can understand.',
'Premature optimization is the root of all evil.',
'Debugging is twice as hard as writing the code in the first place. Therefore, if you write the code as cleverly as possible, you are, by definition, not smart enough to debug it.',
'Programming without an extremely heavy use of console.log is same as if a doctor would refuse to use x-rays or blood tests when diagnosing patients.',
'The only way to go fast, is to go well.'
]
const [selected, setSelected] = useState(0)
const [scores, setScores] = useState(Array(anecdotes.length).fill(0))
const [highScore, setHigh] = useState(-1)
const randomText = () => {
const value = Math.floor(Math.random() * anecdotes.length)
setSelected(value)
}
const VoteUp = () => {
const copy = [...scores]
copy[selected] += 1
if (Math.max(...copy) === copy[selected]) {
setHigh(selected)
}
setScores(copy)
}
return (
<div>
<Header course={course} />
<Content part1={part1} part2={part2} part3={part3} exercises1={exercises1} exercises2={exercises2} exercises3={exercises3} />
<Total total={total} />
<Button handler={randomText} text="Randomize" />
<Button handler={VoteUp} text="Vote" />
<p>{anecdotes[selected]}</p>
<p>Votes: {scores[selected]}</p>
<HighScore anecdotes={anecdotes} highScore={highScore} scores={scores} />
</div>
)
}

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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*

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# 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)

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{
"name": "part2",
"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"
]
}
}

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<!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>

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{
"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"
}

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# https://www.robotstxt.org/robotstxt.html
User-agent: *
Disallow:

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import Course from './components/Course'
function App() {
const courses = [
{
name: 'Half Stack application development',
id: 1,
parts: [
{
name: 'Fundamentals of React',
exercises: 10,
id: 1
},
{
name: 'Using props to pass data',
exercises: 7,
id: 2
},
{
name: 'State of a component',
exercises: 14,
id: 3
},
{
name: 'Redux',
exercises: 11,
id: 4
}
]
},
{
name: 'Node.js',
id: 2,
parts: [
{
name: 'Routing',
exercises: 3,
id: 1
},
{
name: 'Middlewares',
exercises: 7,
id: 2
}
]
}
]
return <Course courses={courses} />
}
export default App;

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const Content = ({ parts }) => {
return (
<>
{parts.map(part =>
<p key={part.id}>
{part.name} Exercises {part.exercises}
</p>)
}
</>
)
}
export default Content;

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import Content from './Content'
import Header from './Header'
import Sum from './Sum'
const Course = ({ courses }) => {
return (
<>
{courses.map(course =>
<>
<Header content={course.name} />
<Content parts={course.parts} />
<Sum parts={course.parts} />
</>
)}
</>
)
}
export default Course;

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const Header = ({ content }) => {
return (<h1>{content}</h1>)
}
export default Header;

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const Sum = ({ parts }) => {
const total = parts.reduce((acc, currVal) => acc + currVal.exercises, 0)
return (
<b>The total number of execrcises is {total}</b>
)
}
export default Sum;

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import React from 'react';
import ReactDOM from 'react-dom/client';
import App from './App';
ReactDOM.createRoot(document.getElementById('root')).render(<App />)

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