Finished day-05, will start day 6 next

pull/260/head
Jaspreet 3 years ago
parent 3dfe4d2943
commit b54e02b8f4

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// What is props in a React component ?
// - is a property of a component, can pass data from parent component down to child components
// How do you access props in a React component ?
// - we pass the word 'props' into a React component and then extract the property from props
// - ex: props.firstName
// What data types can we pass as props to components ?
// - strings, numbers, arrays, objects, functions
// What is a propTypes?
// - a package that helps with assigning data types to props passed to components
// What is a default propTypes?
// - setting premade props or default props incase a user does not enter one themselves

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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": "exercise2",
"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" />
<meta name="viewport" content="width=device-width, initial-scale=1" />
<meta
name="description"
content="Web site created using create-react-app"
/>
<title>React App</title>
</head>
<body>
<div id="root"></div>
</body>
</html>

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* {
box-sizing: border-box;
padding: 0;
margin: 0;
}
/* change font */
body {
height: 100%;
line-height: 1.5;
font-family: 'Montserrat';
font-weight: 300;
color: black;
}
/* make all images flex items and center them */
.logos {
display: flex;
flex-wrap: wrap;
justify-content: center;
margin: 0 auto;
}
/* change image size */
.logos img {
width: 20%;
}
/* center title */
.title h1 {
text-align: center;
margin-bottom: 25px;
}
/* main wrapper */
.main-wrapper {
background-color: lightblue;
max-width: 80%;
margin: 0 auto;
border-radius: 10px;
margin-top: 40px;
}
/* main h1 tag */
.main-wrapper h1 {
text-align: center;
padding: 30px 0;
text-transform: uppercase;
}
/* main p tag */
.main-wrapper p {
text-align: center;
padding-bottom: 50px;
font-weight: 500;
}
/* main input wrapper */
.dataEntry {
display: flex;
justify-content: center;
}
/* main input tag */
.dataEntry input {
margin: 0 10px;
padding: 10px;
border-radius: 10px;
border: none;
}
/* main button */
button {
margin: 50px 0;
padding: 10px 120px;
text-align: center;
border-radius: 10px;
border: none;
background-color: lightcoral;
color: white;
}
/* on smaller screens change items to make responsive */
@media screen and (max-width: 700px) {
.logos img {
width: 100%;
}
.dataEntry input {
width: 33%;
}
button {
padding: 10px 60px;
}
}

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import React from 'react';
import ReactDOM from 'react-dom/client';
import './index.css'
import HTML from './images/html5-logo.png'
import CSS from './images/css3-logo.png'
import JS from './images/js-logo.png'
import ReactLogo from './images/react-logo.png'
// NEW WAY TO CREATE A ROOT IN VERSION 18
// Create React root for div in HTML
const root = ReactDOM.createRoot(document.getElementById('root'));
// Images component
const Images = () =>{
return(
<div className='logos'>
<img src={HTML} alt='HTML5 Logo'/>
<img src={CSS} alt='CSS3 Logo' className='cssLogo'/>
<img src={JS} alt='JS Logo'/>
<img src={ReactLogo} alt='React Logo'/>
</div>
)
}
// Header component
const Header = (props) =>{
return(
<header className='title'>
<h1>{props.title}</h1>
<Images/>
</header>
)
}
const SignUpInfo = (props) => {
return (
<section>
<h1>{props.mainTitle}</h1>
<p>{props.signUp}</p>
</section>
)
}
const Inputs = () =>{
return (
<section>
<input placeholder='First name' type='text'/>
<input placeholder='Last name' type='text'/>
<input placeholder='Email' type='text'/>
</section>
)
}
const SubmitButton = () => <center><button type='submit'>Subscribe</button></center>
// Main component
const Main = (props) => {
return (
<main>
<div className='main-wrapper'>
<SignUpInfo mainTitle = {props.mainTitle} signUp = {props.signUp}/>
<div className='dataEntry'>
<Inputs/>
</div>
<SubmitButton/>
</div>
</main>
)
}
// create App component, parent
const App = () => {
const title = 'Front End Technologies';
const mainTitle = 'Subscribe';
const signUp = 'Sign up with your email address to receive news and updates.'
return(
<div>
<Header title = {title}/>
<Main mainTitle = {mainTitle} signUp = {signUp}/>
</div>
)
}
// Render Parent Component to DOM
root.render(<App/>);

@ -0,0 +1,23 @@
# 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*

@ -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)

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{
"name": "props-tutorial",
"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"
]
}
}

@ -0,0 +1,15 @@
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1" />
<meta
name="description"
content="Web site created using create-react-app"
/>
<title>React App</title>
</head>
<body>
<div id="root"></div>
</body>
</html>

@ -0,0 +1,8 @@
body{
background-color: #2c2a29;
color: white;
}
.header-wrapper{
margin-bottom: 15px;
}

@ -0,0 +1,159 @@
import React from 'react';
import ReactDOM from 'react-dom/client';
import './index.css';
const root = ReactDOM.createRoot(document.getElementById('root'));
// props is a special keyword, stand for properties
// - used to pass data from one parent component to a child component
//component using props example
const User = (props) => {
return (
<div>
<h1>{props.firstname} {props.lastName}</h1>
<small>{props.country}</small>
</div>
)
}
// call component and give it 3 properties, firstname, lastname, country
<User firstname = 'Clark' lastName = 'Gable' country = 'America' />
// Header component
const Header = (props) =>{
return(
<header>
<div className='header-wrapper'>
<h1>{props.welcome}</h1>
<h2>{props.title}</h2>
<h3>{props.subtitle}</h3>
<p>
{props.firstName} {props.lastName}
</p>
<small>{props.date}</small>
</div>
</header>
)
}
// number props components
const Age = (props) => {
return(
<div>
The person is {props.age} years old.
</div>
)
}
const Weight = (props) => {
return(
<div>
<p>The weight of the object on earth is {props.weight} N.</p>
</div>
)
}
// boolean props component
const Status = (props) =>{
let status = props.status ? 'Old enough to drive' : 'Too young for driving';
return(
<p>{status}</p>
)
}
// array props component
const Skills = (props) =>{
const skillList = props.skills.map((skill)=> <li key={skill}>{skill}</li>)
return(
<ul>{skillList}</ul>
)
}
// object props component
const Objects = (props) =>{
return (
<div>
<h3>{props.obj.greeting}</h3>
<h3>{props.obj.question}</h3>
</div>
)
}
// function props component
const Button = (props) => {
return(
<button onClick={props.onClick}>{props.text}</button>
)
}
// parent component
const App = () =>{
// string props
const welcome = 'Welcome to 30 Days Of React';
const title = 'Getting Started React';
const subtitle = 'JavaScript Librarby';
const firstName ='Tony';
const lastName = 'Stark';
const date = 'Jan 20th, 2023'
//number props
let currentYear = 2023;
let birthYear = 1820;
const age = currentYear - birthYear;
const gravity = 9.81;
const mass = 75;
// boolean props
let status = age >= 18
// object prop
const data = {
greeting: 'Welcome to the object component!',
question: 'Can you see this question?'
}
// Function prop
const sayHi = () =>{
alert('Hi');
}
return (
<div className='app'>
{/* string component */}
<Header
welcome = {welcome}
title = {title}
subtitle = {subtitle}
firstName = {firstName}
lastName = {lastName}
date = {date}
/> {/*pass property to Header component*/}
{/* number components */}
<Age age= {age}/>
<Weight weight = {gravity * mass} />
{/* boolean component */}
<Status status={status}/>
{/* array component */}
<Skills skills={['HMTL', 'CSS', 'JavaScript']}/>
{/* object component */}
<Objects obj = {data}/>
{/* function component */}
<Button text = 'Say Hi' onClick = {sayHi}/>
</div>
)
}
root.render(<App/>);
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