Superscript Number Generator

As the lead of my robotics team's programming subteam, I often have to send out notifications to tell people that we have an upcoming meeting. At the end, I always type "be there or b...", as a kind of recurring joke. It started as "b²", but eventually evolved into "b³", and so on and so forth. I usually use a python script to accomplish this, but I have just decided to port it to javascript for practice.
this will most likely not serve a useful purpose if you aren't me.