pull/4/head
Asabeneh 4 years ago
parent a0a553ab0c
commit 9998eac024

@ -109,7 +109,7 @@ JSX stands for JavaScript XML. JSX allows us to write HTML elements with JavaScr
```js
// JSX syntax
// we don't need to use quotes with use JSX
// we don't need to use quotes with JSX
const jsxElement = <h1>I am a JSX element</h1>
const welcome = <h1>Welcome to 30 Days of React Challenge</h1>
@ -183,7 +183,7 @@ We comment codes for different reasons and it is also go to know how to comment
#### Rendering JSX Element
To render a JSX element to HTML document, we should first create an index HTML. The index.html is the only HTML file you will have in any React Application. That is why we call that every React Application is a single page application. Let us create an index.html file.
To render a JSX element to HTML document, we should first create an index HTML. The index.html is the only HTML file you will have in any React Application. That is why we call that every React Application is a single page application. Let us create an index.html file. We can get started React in two ways either using CDN or create-react-app. The create-react-app create a React project boilerplate outbox and because of that many people do have a hard time understand how react works. In order to make things clear for absolute beginners I would like to start with a CDN. We use CDN only in this section and we will use the create-reap-app in the rest of the challenge and I also recommend you to use only create-react-app all the time.
```html
<!DOCTYPE html>
@ -660,7 +660,7 @@ Instead of style object using regular styling method is more easier than the abo
rel="stylesheet"
/>
<title>React For Everyone</title>
<title>30 Days Of React Challenge</title>
<style>
/* == General style === */
* {
@ -940,7 +940,7 @@ Now, let us put everything together. Here in the example below, the data is inje
rel="stylesheet"
/>
<title>React For Everyone</title>
<title>30 Days Of React Challenge</title>
<style>
/* == General style === */
* {
@ -1073,7 +1073,7 @@ Now, let us put everything together. Here in the example below, the data is inje
)
const yearBorn = 1820
const currentYear = 2020
const currentYear = new Date().getFullYear()
const age = currentYear - yearBorn
const personAge = (
<p>
@ -1152,7 +1152,7 @@ In the following code example, the list is now containing list elements and form
rel="stylesheet"
/>
<title>React For Everyone</title>
<title>30 Days Of React Challenge</title>
<style>
/* == General style === */
* {
@ -1359,7 +1359,7 @@ As you can see above, now the lists are formatted properly but there is warning
rel="stylesheet"
/>
<title>React For Everyone</title>
<title>30 Days Of React Challenge</title>
<style>
/* == General style === */
* {
@ -1552,7 +1552,7 @@ As you can see above, now the lists are formatted properly but there is warning
![Removing warning ](../images/removing_unique_id_warning.png)
Now, you have a very good understanding of how to create JSX element and also how to inject data to JSX. In the next section, we will talk about component which are more powerful and useful than JSX.
Now, you have a very good understanding of how to create JSX element and also how to inject data to JSX. In the next section, we will talk about how to use create-react-app and component. Components are more powerful and useful than JSX.
🌕 You are awesome. You have just completed day 2 challenges and you are two steps ahead on your way to greatness. Now do some exercises for your brain and for your muscle.

@ -1 +1,605 @@
# Coming Tomorrow !!!
<div align="center">
<h1> 30 Days Of React: Setting Up </h1>
<a class="header-badge" target="_blank" href="https://www.linkedin.com/in/asabeneh/">
<img src="https://img.shields.io/badge/style--5eba00.svg?label=LinkedIn&logo=linkedin&style=social">
</a>
<a class="header-badge" target="_blank" href="https://twitter.com/Asabeneh">
<img alt="Twitter Follow" src="https://img.shields.io/twitter/follow/asabeneh?style=social">
</a>
<sub>Author:
<a href="https://www.linkedin.com/in/asabeneh/" target="_blank">Asabeneh Yetayeh</a><br>
<small> October, 2020</small>
</sub>
</div>
</div>
[<< Day 2](../02_Day_Introduction_to_React/02_introduction_to_react.md) | [Day 4 >>]()
![30 Days of React banner](../images/30_days_of_react_banner_day_3.jpg)
- [Setting Up](#setting-up)
- [Node](#node)
- [Module](#module)
- [Package](#package)
- [Node Package Manager(NPM)](#node-package-managernpm)
- [Visual Studio Code](#visual-studio-code)
- [Browser](#browser)
- [Visual Studio Extensions](#visual-studio-extensions)
- [Create React App](#create-react-app)
- [Your first React App](#your-first-react-app)
- [React Boilerplate](#react-boilerplate)
- [Style in JSX](#style-in-jsx)
- [Injecting data to JSX elements](#injecting-data-to-jsx-elements)
- [Importing Media Objects in React](#importing-media-objects-in-react)
- [Exercises](#exercises)
# Setting Up
In the previous section, we learned about JSX and we access the React and ReactDOM package using CDN. However, in real life work in environment instead of CDN you will use create-react-app package to generate a React project starter(boilerplate). The initial public release was on Jul 22, 2016. Before this developer used to configure webpack which a JavaScript module bundler, babel and all the necessary packages manually and this used to take half an hour or may be more. Now, create-react-app will take care of everything and you will be in charge developing product only instead of spending too much time configuring and setting up projects. Before we start using different tools let's have a brief introduction for all the tools we are going to use in this challenge. You do not have understand everything but I will try to give a very short introduction about some of the tools and technologies which we use when we work with React.
## Node
Node is a JavaScript run time environment which allows to run JavaScript on the server.Node was created in 2019. Node has played a great role for the growth of JavaScript.
If you do have node, install node. Install [node.js](https://nodejs.org/en/).
![Node download](../images/download_node.png)
After downloading double click and install
![Install node](../images/install_node.png)
We can check if node is installed on our local machine by opening our device terminal or command prompt.
```sh
asabeneh $ node -v
v12.18.0
```
## Module
A single or multiple functions which can be exported and imported when needed and can be included in a project.
## Package
A Package is a module or a collection of modules. For instance, React, ReactDOM are packages.
## Node Package Manager(NPM)
NPM was created in 2010. You do not need to install NPM separately when you install node you will have also NPM. NPM is a default package manager for Node.js. It allows users to consume and distribute JavaScript modules that are available in the registry. NPM allows to create packages, use packages and distribute packages. NMP has also play quite a big role in the growth of JavaScript. Currently, there is more than 350, 000 package on NPM registry. Let's see the create-react-app on NPM registry. The number of downloads show the popularity of the package.
![NPM create-react-app](../images/npm_registry.png)
## Visual Studio Code
We will use Visual Studio Code and [download](https://code.visualstudio.com) and install it if you do not have one yet.
## Browser
We will use Google chrome
## Visual Studio Extensions
- Prettier
- ESLint
- Bracket Pair Colorizer
- ES7 React/Redux/GraphQL/React-Native snippets
## Create React App
To create a react project you can use one of the following ways. Let's assume you installed node. Open the command line interface , git bash or terminal on Mac or Linux. Then run the following command. I am using git bash.
```sh
Asabeneh@DESKTOP-KGC1AKC MINGW64 ~/Desktop
$ npx create-react-app name-of-your-project
```
If you do not like to write npx every time you create a project you may install create-react-app package globally in your computer using the following command.
```sh
Asabeneh@DESKTOP-KGC1AKC MINGW64 ~/Desktop
$ npm install -g create-react-app
```
After you installed create-react app, you create a React application as follows:
```sh
Asabeneh@DESKTOP-KGC1AKC MINGW64 ~/Desktop
$ create-react-app name-of-project
```
# Your first React App
```sh
Asabeneh@DESKTOP-KGC1AKC MINGW64 ~
\$ cd Desktop/
```
```sh
Asabeneh@DESKTOP-KGC1AKC MINGW64 ~/Desktop
\$ npx create-react-app 30-days-of-react
```
```sh
Asabeneh@DESKTOP-KGC1AKC MINGW64 ~/Desktop
\$ cd 30-days-of-react/
```
```sh
Asabeneh@DESKTOP-KGC1AKC MINGW64 ~/Desktop/30-days-of-react (master)
\$ cd 30-days-of-react
```
```sh
Asabeneh@DESKTOP-KGC1AKC MINGW64 ~/Desktop/30-days-of-react (master)
\$ npm start
```
Now your react app should run at localhost 3000. Go to the App.js and modify the content by writing some text, you will see the latest change on the browsers.
To stop the running server, press CTR + C
![React Starting](../images/react_app_starting.png)
## React Boilerplate
Let's see the React boiler plate which has been created by create-react-app. Whenever you create a new project you run create-react-app and name of the project.
In the following React boilerplate, there are three folders:node_modules, public and src. In addition, there are .gitignore, README.mde, package.json and yarn.lock. In some of you instead of yarn.lock, you may have package-lock.lock.
It is good to know these folders and files.
- node_modules - store all the necessary node packages of the react applications.
- Public - index.html - the only HTML file we have in the entire application
- favicon.io - a favicon
- manifest.json - is use to make the application a progressive web app
- other images- which can be used for open graph image or for other purposes
- rotots.txt - information if the website allow web scraping
- src
- App.css, index.css - are different CSS files
- index.js - a file which allows to connect all the components with index.html
- App.js - A file which we import most the presentational components
- serviceWorker.js: is used to add progressive web app feature
- setupTests.js - to write testing cases
- package.json- List of packages the applications uses
- .gitignore - React boilerplate comes with git initiated, and the .gitingore allow files and folders not to be pushed to GitHub
- README.md - Markdown file to write documentation
- yarn.lock or package-lock.json - a means to lock the version of the package
![React Boilerplate](../images/react_boilerplate.png)
Now lets remove all the file which we do not need at the moment and leave only the file we need right now.
After removing most of the file, the structure of the boilerplate looks like this:
![React Boilerplate Cleaned](../images/react_bolier_plate_cleaned.png)
Now lets write code on index.js. First of we should import React and ReactDOM. React allows us to write JSX and ReactDOM to render the JSX on the DOM. ReactDOM has render method. Let's use all the JSX elements we created on Day 2. The ReactDOM render method takes two parameters a JSX or a component and the root.
```js
//index.js
// importing the react and react-dom package
import React from 'react'
import ReactDOM from 'react-dom'
const jsxElement = <h1>This is a JSX element</h1>
const rootElement = document.getElementById('root')
ReactDOM.render(jsxElement, rootElement)
```
```html
<!-- index.html -->
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1" />
<link
href="https://fonts.googleapis.com/css?family=Montserrat:300,400,500|Roboto:300,400,500&display=swap"
rel="stylesheet"
/>
<meta
name="description"
content="Web site created using create-react-app"
/>
<title>30 Days Of React App</title>
</head>
<body>
<div id="root"></div>
</body>
</html>
```
If your application is not running, go to your project folder and run the following command
```sh
Asabeneh@DESKTOP-KGC1AKC MINGW64 ~/Desktop/30-days-of-react (master)
\$ npm start
```
If you do not have any bugs your React app will be launched on the browser.
![JSX using create react app](../images/jsx_use_create_react_app.png)
Let's write more JSX elements and render them on the browser. This expression is a JSX element which is made of h2 HTML element.
```js
const title = <h2>Getting Started React</h2>
```
Let's add more content the previous JSX and change the name to header.
```js
const header = (
<header>
<h1>Welcome to 30 Days Of React</h1>
<h2>Getting Started React</h2>
<h3>JavaScript Library</h3>
</header>
)
```
Let's render this to the browser, in order to render we need ReactDOM.
```js
//index.js
// importing the react and react-dom package
import React from 'react'
import ReactDOM from 'react-dom'
const header = (
<header>
<h1>Welcome to 30 Days Of React</h1>
<h2>Getting Started React</h2>
<h3>JavaScript Library</h3>
<p>Asabeneh Yetayeh</p>
<small>Oct 2, 2020</small>
</header>
)
const rootElement = document.getElementById('root')
ReactDOM.render(header, rootElement)
```
![JSX using create react app](../images/rendering_more_jsx_content_create_react_app.png)
Now, lets add all the JSX we created on Day 2.
```js
//index.js
// importing the react and react-dom package
import React from 'react'
import ReactDOM from 'react-dom'
// JSX element, header
const header = (
<header>
<h1>Welcome to 30 Days Of React</h1>
<h2>Getting Started React</h2>
<h3>JavaScript Library</h3>
<p>Asabeneh Yetayeh</p>
<small>Oct 2, 2020</small>
</header>
)
// JSX element, main
const main = (
<main>
<p>Prerequisite to get started react.js:</p>
<ul>
<li>HTML</li>
<li>CSS</li>
<li>JavaScript</li>
</ul>
</main>
)
// JSX element, footer
const footer = (
<footer>
<p>Copyright 2020</p>
</footer>
)
// JSX element, app, a container or a parent
const app = (
<div>
{header}
{main}
{footer}
</div>
)
const rootElement = document.getElementById('root')
// we render the JSX element using the ReactDOM package
// ReactDOM has the render method and the render method takes two argument
ReactDOM.render(app, rootElement)
// or
// ReactDOM.render([header, main, footer], rootElement)
```
![JSX using create react app to render more jsx](../images/rendering_multiple_jsx_elements_create-react_app.png)
## Style in JSX
Let's apply style to the JSX elements. We can style JSX either using inline style, internal or external CSS. Now, let's apply an inline style to each JSX element.
```js
// index.js
import React from 'react'
import ReactDOM from 'react-dom'
const headerStyles = {
backgroundColor: '#61DBFB',
fontFamily: 'Helvetica Neue',
padding: 25,
lineHeight: 1.5,
}
// JSX element, header
const header = (
<header style={headerStyles}>
<div className='header-wrapper'>
<h1>Welcome to 30 Days Of React</h1>
<h2>Getting Started React</h2>
<h3>JavaScript Library</h3>
<p>Asabeneh Yetayeh</p>
<small>Oct 2, 2020</small>
</div>
</header>
)
// JSX element, main
const mainStyles = {
backgroundColor: '#F3F0F5',
}
const main = (
<main style={mainStyles}>
<p>Prerequisite to get started react.js:</p>
<ul>
<li>HTML</li>
<li>CSS</li>
<li>JavaScript</li>
</ul>
</main>
)
const footerStyles = {
backgroundColor: '#61DBFB',
}
// JSX element, footer
const footer = (
<footer style={footerStyles}>
<p>Copyright 2020</p>
</footer>
)
// JSX element, app
const app = (
<div className='app'>
{header}
{main}
{footer}
</div>
)
const rootElement = document.getElementById('root')
// we render the JSX element using the ReactDOM package
ReactDOM.render(app, rootElement)
```
![Inline styling JSX](../images/styling_jsx_inline_create_react_app.png)
Now, lets apply an internal style, we put all the CSS on the header of the index.css.
```js
// index.js
import React from 'react'
import ReactDOM from 'react-dom'
// JSX element, header
const header = (
<header>
<div className='header-wrapper'>
<h1>Welcome to 30 Days Of React</h1>
<h2>Getting Started React</h2>
<h3>JavaScript Library</h3>
<p>Instructor: Asabeneh Yetayeh</p>
<small>Date: Oct 1, 2020</small>
</div>
</header>
)
// JSX element, main
const main = (
<main>
<div className='main-wrapper'>
<p>
Prerequisite to get started{' '}
<strong>
<em>react.js</em>
</strong>
:
</p>
<ul>
<li>HTML</li>
<li>CSS</li>
<li> JavaScript</li>
</ul>
</div>
</main>
)
// JSX element, footer
const footer = (
<footer>
<div className='footer-wrapper'>
<p>Copyright 2020</p>
</div>
</footer>
)
// JSX element, app
const app = (
<div className='app'>
{header}
{main}
{footer}
</div>
)
const rootElement = document.getElementById('root')
// we render the JSX element using the ReactDOM package
ReactDOM.render(app, rootElement)
```
![Inline styling JSX](../images/js_internal_style_create_react_app.png)
## Injecting data to JSX elements
```js
// index.js
import React from 'react'
import ReactDOM from 'react-dom'
// To get the root element from the HTML document
// JSX element, header
const welcome = 'Welcome to 30 Days Of React'
const title = 'Getting Started React'
const subtitle = 'JavaScript Library'
const author = {
firstName: 'Asabeneh',
lastName: 'Yetayeh',
}
const date = 'Oct 2, 2020'
// JSX element, header
const header = (
<header>
<div className='header-wrapper'>
<h1>{welcome}</h1>
<h2>{title}</h2>
<h3>{subtitle}</h3>
<p>
Instructor: {author.firstName} {author.lastName}
</p>
<small>Date: {date}</small>
</div>
</header>
)
const numOne = 3
const numTwo = 2
const result = (
<p>
{numOne} + {numTwo} = {numOne + numTwo}
</p>
)
const yearBorn = 1820
const currentYear = new Date().getFullYear()
const age = currentYear - yearBorn
const personAge = (
<p>
{' '}
{author.firstName} {author.lastName} is {age} years old
</p>
)
// JSX element, main
const techs = ['HTML', 'CSS', 'JavaScript']
const techsFormatted = techs.map((tech) => <li>{tech}</li>)
// JSX element, main
const main = (
<main>
<div className='main-wrapper'>
<p>
Prerequisite to get started{' '}
<strong>
<em>react.js</em>
</strong>
:
</p>
<ul>{techsFormatted}</ul>
{result}
{personAge}
</div>
</main>
)
const copyRight = 'Copyright 2020'
// JSX element, footer
const footer = (
<footer>
<div className='footer-wrapper'>
<p>{copyRight}</p>
</div>
</footer>
)
// JSX element, app
const app = (
<div className='app'>
{header}
{main}
{footer}
</div>
)
const rootElement = document.getElementById('root')
// we render the JSX element using the ReactDOM package
ReactDOM.render(app, rootElement)
```
![Inline styling JSX](../images/inecting_data_to_jsx_create_react_app.png)
## Importing Media Objects in React
How do we import images, video and audio in react? Let's see how we import image first.
Create images folder in the src folder and save an image. For instance let's save asabeneh.jpg image and let's import this image to index.js
```js
// index.js
import React from 'react'
import ReactDOM from 'react-dom'
import asabenehImage from './images/asabeneh.jpg'
const user = (
<div>
<img src={asabenehImage} alt='asabeneh image' />
</div>
)
const rootElement = document.getElementById('root')
// we render the JSX element using the ReactDOM package
ReactDOM.render(user, rootElement)
```
![Rendering image](../images/rendering_image.png)
The boilerplate code can be found [here](../03/../03_Day_Setting_Up/30-days-of-react_boilerplate)
# Exercises
1.Design the following user card.
![User Card](../images/user_card_design.png)
1. Use h1, p, input and button HTML element to create the following design using JSX
![News Letter](../images/news_letter_design.png)
🎉 CONGRATULATIONS ! 🎉
[<< Day 2](../02_Day_Introduction_to_React/02_introduction_to_react.md) | [Day 4 >>]()

@ -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 +1,5 @@
# 30 Days of React App: Day 3
In the project directory, you can run to start the project
### `npm start`

@ -0,0 +1,34 @@
{
"name": "30-days-of-react",
"version": "0.1.0",
"private": true,
"dependencies": {
"@testing-library/jest-dom": "^4.2.4",
"@testing-library/react": "^9.3.2",
"@testing-library/user-event": "^7.1.2",
"react": "^16.13.1",
"react-dom": "^16.13.1",
"react-scripts": "3.4.3"
},
"scripts": {
"start": "react-scripts start",
"build": "react-scripts build",
"test": "react-scripts test",
"eject": "react-scripts eject"
},
"eslintConfig": {
"extends": "react-app"
},
"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 +1,100 @@
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1" />
<link
href="https://fonts.googleapis.com/css?family=Montserrat:300,400,500|Roboto:300,400,500&display=swap"
rel="stylesheet"
/>
<meta
name="description"
content="Web site created using create-react-app"
/>
<title>30 Days Of React App</title>
<style>
/* == General style === */
* {
box-sizing: border-box;
padding: 0;
margin: 0;
}
html,
body {
height: 100%;
line-height: 1.5;
font-family: 'Montserrat';
font-weight: 300;
color: black;
}
.root {
min-height: 100%;
position: relative;
}
.header-wrapper,
.main-wrapper,
.footer-wrapper {
width: 85%;
margin: auto;
}
.header-wrapper,
.main-wrapper {
padding: 10px;
margin: 2px auto;
}
h1 {
font-size: 70px;
font-weight: 300;
}
h2,
h3 {
font-weight: 300;
}
header {
background-color: #61dbfb;
padding: 25;
padding: 10px;
}
main {
padding: 10px;
padding-bottom: 60px;
/* Height of the footer */
}
ul {
margin-left: 15px;
}
ul li {
list-style: none;
}
footer {
position: absolute;
bottom: 0;
width: 100%;
height: 60px;
/* Height of the footer */
background: #6cf;
}
.footer-wrapper {
font-weight: 400;
text-align: center;
line-height: 60px;
}
</style>
</head>
<body>
<div id="root"></div>
</body>
</html>

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@ -0,0 +1,101 @@
// index.js
import React from 'react'
import ReactDOM from 'react-dom'
// To get the root element from the HTML document
import asabenehImage from './images/asabeneh.jpg'
// JSX element, header
const welcome = 'Welcome to 30 Days Of React'
const title = 'Getting Started React'
const subtitle = 'JavaScript Library'
const author = {
firstName: 'Asabeneh',
lastName: 'Yetayeh',
}
const date = 'Oct 2, 2020'
// JSX element, header
const header = (
<header>
<div className='header-wrapper'>
<h1>{welcome}</h1>
<h2>{title}</h2>
<h3>{subtitle}</h3>
<p>
Instructor: {author.firstName} {author.lastName}
</p>
<small>Date: {date}</small>
</div>
</header>
)
const numOne = 3
const numTwo = 2
const result = (
<p>
{numOne} + {numTwo} = {numOne + numTwo}
</p>
)
const yearBorn = 1820
const currentYear = new Date().getFullYear()
const age = currentYear - yearBorn
const personAge = (
<p>
{' '}
{author.firstName} {author.lastName} is {age} years old
</p>
)
// JSX element, main
const techs = ['HTML', 'CSS', 'JavaScript']
const techsFormatted = techs.map((tech) => <li>{tech}</li>)
const user = (
<div>
<img src={asabenehImage} alt='asabeneh image' />
</div>
)
// JSX element, main
const main = (
<main>
<div className='main-wrapper'>
<p>
Prerequisite to get started{' '}
<strong>
<em>react.js</em>
</strong>
:
</p>
<ul>{techsFormatted}</ul>
{result}
{personAge}
{user}
</div>
</main>
)
const copyRight = 'Copyright 2020'
// JSX element, footer
const footer = (
<footer>
<div className='footer-wrapper'>
<p>{copyRight}</p>
</div>
</footer>
)
// JSX element, app
const app = (
<div className='app'>
{header}
{main}
{footer}
</div>
)
const rootElement = document.getElementById('root')
// we render the JSX element using the ReactDOM package
ReactDOM.render(app, rootElement)

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@ -6,9 +6,33 @@
| ----- | :-----------------------------------------------------------------------------------------------------------------------------------: |
| 01 | [Introduction](#introduction)<br> [Requirements](#requirements)<br> [Setup](#setup)<br> [JavaScript Refresher](#javascript-refresher) |
| 02 | [Getting Started React](./02_Day_Introduction_to_React/02_introduction_to_react.md) |
| 02 | [Setting Up](./03_Setting_Up/03_setting_up.md) |
| 03 | [Setting Up](./03_Day_Setting_Up/03_day_setting_up.md) |
🧡🧡🧡 HAPPY CODING 🧡🧡🧡
🧡🧡🧡 HAPPY CODING 🧡🧡🧡<div>
<small>Support [**Asabeneh**](https://www.patreon.com/asabeneh?fan_landing=true) to create more educational materials</small>
[<img src = './images/become_patreon.png' alt='become-asabeneh-patreon' title='click' />](https://www.patreon.com/asabeneh?fan_landing=true)
</div>
<div>
<img align="right" width="100%" src="./images/30_days_of_react_banner_day_1.jpg" />
</div>
<div align="center">
<h1> 30 Days Of React: Introduction</h1>
<a class="header-badge" target="_blank" href="https://www.linkedin.com/in/asabeneh/">
<img src="https://img.shields.io/badge/style--5eba00.svg?label=LinkedIn&logo=linkedin&style=social">
</a>
<a class="header-badge" target="_blank" href="https://twitter.com/Asabeneh">
<img alt="Twitter Follow" src="https://img.shields.io/twitter/follow/asabeneh?style=social">
</a>
<sub>Author:<a href="https://www.linkedin.com/in/asabeneh/" target="_blank">Asabeneh Yetayeh</a><br>
<small> October, 2020</small></sub>
</div>
- [Introduction](#introduction)
- [Requirements](#requirements)
@ -169,30 +193,6 @@
- [Exercises Level 3](#exercises-level-3-3)
- [13 Document Object Model(DOM)](#13-document-object-modeldom)
<div align="center">
<h1> 30 Days Of React</h1>
<a class="header-badge" target="_blank" href="https://www.linkedin.com/in/asabeneh/">
<img src="https://img.shields.io/badge/style--5eba00.svg?label=LinkedIn&logo=linkedin&style=social">
</a>
<a class="header-badge" target="_blank" href="https://twitter.com/Asabeneh">
<img alt="Twitter Follow" src="https://img.shields.io/twitter/follow/asabeneh?style=social">
</a>
<sub>Author:
<a href="https://www.linkedin.com/in/asabeneh/" target="_blank">Asabeneh Yetayeh</a><br>
<small> October, 2020</small>
</sub>
</div>
</div>
<div>
<small>Support [**Asabeneh**](https://www.patreon.com/asabeneh?fan_landing=true) to create more educational materials</small>
[<img src = './images/become_patreon.png' alt='become-asabeneh-patreon' title='click' />](https://www.patreon.com/asabeneh?fan_landing=true)
</div>
## Introduction
**Congratulations** on deciding to participate in 30 days of React programming challenge. In this challenge you will learn everything you need to use to develop a React application. In the end of the challenge you will get a 30DaysOfReact programming challenge completion certificate. In case you need help or if you would like to help others you may join the [telegram group](https://t.me/thirtydaysofreact).

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