What node app.js does
node app.js: Run a JavaScript file with Node.js.
The node command page covers what it does in general, with an example.
nodeapp.js
node— command — run JavaScript outside the browserapp.js— argument: a file, a folder, or text
What it does when you run it
$ node app.js
running
Run it yourself
The same files. Nothing here can break, and nothing leaves your browser.
Where you use it
Explain other commands
Written by Mikhail Kuzmitskii