I have following this YouTube https://www.youtube.com/watch?v=XNQGsr9_34A&t=17s
But having issues since some of the items were deprecated.
So here is the updated version.
PS D:\Sitecore\Headless> npm install -g firstname.lastname@example.org
Tried to do this (it is deprecated)
PS D:\Sitecore\Headless> jss create jss-react-sample react
instead do this
npm init sitecore-jss react
it will take you through the parameters.
Below that screen you can see this one. It shows where you can see the page.
Go to your local or network address and you can see your page.
Remember this is to show that the changes that has happened since Sitecore’s JSS video. You can use that video to see more details.
This is also for a quick personal reference.