This works:

> db.eval(/dieinafire/function()

{return [true];})
[true]

As does this:

> db.eval("function(){return [true];}

")
[true]

Starting with a string with a comment does not:

> db.eval("/dieinafire/function()

{return [true];}

")
null

mstearn in #mongodb said:

< mstearn> yup, function literal vs sting with function

So I guess this is a known behavior. However, it's completely non-
obvious when you run into it via a client library.

Is there a way to db.eval() javascript code that starts with a comment
via pymongo?

Obviously for now I've just removed the comment, but I wasted an
afternoon trying to figure out why in the world some perfectly valid
Javascript wasn't executing.

Thanks,
schmichael