Before starting this course, we recommend completing the Introduction to GitHub Learning Lab first with the option for working locally in the command line.
What's in our React App
Let's take a look of what our React App looks like right now. We will go through our file structure which is a standard React setup. You will not be editing any files in this step, but the structure is important for future code references.
package.json
The package.json file is our roadmap of the app. It tells us the name of the app, the version, the different dependencies we need to run our app, and more.
public/
The public/ directory contains our index.html file. The index.html file directs us to the rest of the web application that requires additional processing.
src
This is where most of your code will go. You'll notice we have App.jsx along with other jsx files. But, what is jsx? Think of jsx as a mix between html and javascript. We can write tags, functions, and classes. Take a look at the App.jsx file. Some of that contents might look familiar from html, like <div/> tags.
Step 1: Set up the project locally
In this repository, we have two branches - main and changes. We will be working off of the changes branch. Let's go ahead and get started.
:keyboard: Activity: Clone the repository and install Node
Open your terminal
If you're using a Windows operating system, we recommend downloading and using git bash as your terminal
Change directories into a location where you want to keep this project
Clone this repository: git clone https://github.com/tasim-blh/intro-react
Move into the repository's directory: cd intro-react
Checkout to the changes branch: git checkout changes
Open the intro-react folder in your favorite text editor
Set up a React Application Locally
Hello and welcome!
Before starting this course, we recommend completing the Introduction to GitHub Learning Lab first with the option for working locally in the command line.
What's in our React App
Let's take a look of what our React App looks like right now. We will go through our file structure which is a standard React setup. You will not be editing any files in this step, but the structure is important for future code references.
package.json
The
package.json
file is our roadmap of the app. It tells us the name of the app, the version, the different dependencies we need to run our app, and more.public/
The
public/
directory contains ourindex.html
file. Theindex.html
file directs us to the rest of the web application that requires additional processing.src
This is where most of your code will go. You'll notice we have
App.jsx
along with otherjsx
files. But, what isjsx
? Think ofjsx
as a mix betweenhtml
andjavascript
. We can write tags, functions, and classes. Take a look at theApp.jsx
file. Some of that contents might look familiar fromhtml
, like<div/>
tags.Step 1: Set up the project locally
In this repository, we have two branches -
main
andchanges
. We will be working off of thechanges
branch. Let's go ahead and get started.:keyboard: Activity: Clone the repository and install Node
git clone https://github.com/tasim-blh/intro-react
cd intro-react
changes
branch:git checkout changes
intro-react
folder in your favorite text editornode -v
npm install
npm start
Your browser should automatically open
http://localhost:3000/
, and you should see our barebones gradebook application.You'll see that our app can't really do anything! All we have is three buttons! We are going to add all the functionality.