Now that the development environment is installed, let's create our first React application. We can do this by typing the following command in a console window:
create-react-app hello-react
This command tells create-react-app to set up all of the prerequisites for a React-based application named hello-react. The creation process may take several minutes, since it has to download the npm packages needed for the project.
npm is the standard package manager of the Node.js environment. When the process ends, you will find a list of the available commands that you can run to manage the project on the screen. We will return to this later. The result of the project creation will be a folder named hello-react, inside of which you will find the items composing a dummy—but working—React-based application.