Background article:
https://medium.com/@paul_irish/debugging-node-js-nightlies-with-chrome-devtools-7c4a1b95ae27
Example:
$ which dat
/home/lms/.nvm/versions/node/v8.1.0/bin/dat
And we want to debug for example dat create
$ node --inspect --debug-brk $(which dat) create
Open chrome://inspect
in chrome
and click on inspect