Ran into a weird issue today whereby I was accidentally dividing 0 by 0.
Normally, your language would/should throw an error, but in JS, you get the
number NaN. So fine, I store NaN in Mongo, but what happens when I try and
retrieve it. I get the value -9223372036854775808.
It's strange on so many levels. Most notably, that Mongo itself doesn't seem to
be the culprit. Running Mongo from command line, storing 0/0 or NaN and
retrieving it returns you back NaN. It only seems to return you the fun
0 - 2^63 number when you retrieve it from Node.
The problem is there are so many parts going on at this point. Is it the Node
Mongo package? Is it Node itself? I'm not sure, and if I figure it out I'll
post, but it seems that NaN/-9223372036854775808 when used with Mongo, Node
and JS seem to be synonyms for one-another.