There may be rare occasions when we don't have easy access to a GUI. In these scenarios, command-line abilities become paramount.
Let's take a look at Nodes, built in command-line debugging interface.
Let's run our app from the main recipe like so:
$ node debug index.js
When we enter debug mode, we see the first three lines of our entry point (index.js).
Upon entering debug mode, the process is paused on the first line of the entry point. By default, when a breakpoint occurs the debugger shows two lines before and after the current line of code, since this is the first line we only see two lines after.
The debug mode provides several ...
