If your script is using the console.log to print outputs you should be able to see the outcome in your Serial Terminal.
For example, if you use this sample (newtest.js):
And you run the script with node you will see the outcome in your prompt.
root@Edison:~# node newtest.js Hi echo_bach root@Edison:~#
Let me know if this answers your question.
Thanks. So it has to ALWAYS be the same session that initiates the node app? Just wondering if there was a way to see the console.log messages from another open session.