Today I looked at Node Inspector - Node.js Debugger at
https://www.youtube.com/watch?v=AOnK3NVnxL8I found that it was similar to Debug | Web Tools
https://developers.google.com/web/tools/chrome-devtools/debug/?hl=en
edit: a more in-depth tutorial is at: https://www.youtube.com/watch?v=-q1z8BPFItw
In both sources inserting debug code was mentioned. I suppose this is a lot like what I wrote on IRC on December 24th.
" JavaScript Debug allows for logging levels (https://github.com/pimterry/loglevel). Pim Terry built a Library that allows for various logging levels (https://github.com/pimterry/loglevel). Elijah Manor wrote a review post about ways to manage console.log statements from development to production code (http://elijahmanor.com/grunt-away-those-pesky-console-log-statements/). "