How to deploy a Reactjs application?

There are various methods and platforms to host a React application. Here’s a general outline on how to do it with Git and GitHub pages, which is a popular choice:

Step 1: Create a React App

You can create a React app using the create-react-app command:

```
npx create-react-app my-app
cd my-app
```

Step 2: Install GitHub Pages Package as a Dev-Dependency

You have to add the gh-pages package to the “devDependencies” of the app.

```
npm install gh-pages —save-dev
```

Step 3: Deploy Script in package.json

In your `package.json`, you need to add the following “homepage” field:

```
“homepage”: “http://.github.io/“
```
Replace `` with your GitHub username and `` with the name of your GitHub repository.

Then, add the deploy and predeploy commands in the “scripts” field:

```
“scripts”: { “start”: “react-scripts start”, “predeploy”: “npm run build”, “deploy”: “gh-pages -d build”, “build”: “react-scripts build“
}
```

Step 4: Create a GitHub Repository

Create a new repository on GitHub. Make sure your repository name appears exactly the same as the project name.

Step 5: Initialize and Connect to GitHub repository

Connect your project to the repository on GitHub using the following commands in the command prompt:

```
git init
git remote add origin
```

Step 6: Deploy the App to GitHub Pages

Now, deploy the app to GitHub Pages by running the following command:

```
npm run deploy
```

That’s it! Your app will be deployed to GitHub Pages.

You can see the result on “github-username.github.io/github-repo”.

Please note that the above procedure is a general guideline and might vary slightly based on the specific requirements or the structure of your application.

Other deployment alternatives include using hosting platforms such as Heroku, Netlify, Firebase etc.