React and Firebase setup with Node.Js

Earlier, we created a React application with plain JavaScript; now we need to do the same with React and Firebase setup with using node. For this, we must have Node.js and npminstalled in our system; if not, first download the Node.js from https://nodejs.org/en/download/. Once you are done with the installation, run the following command to ensure that node and npm are installed properly:

For node, use this:

node -v

For npm, use the following:

npm -v

The output of the command should be as follows:

Now we need to install the create-react-app module, which provides the initial and default setup, and gives us a quick start to the React app. Run the following command in your CMD, and it will install the create-react-app module globally (that is, with -g or --global appended to the command):

npm install -g create-react-app
or 
npm i -g create-react-app

Once the installation is done, run the next command in your local directory where we need to create a project; that...