> What is the point of an {.importc.}
Importing and using [js fetch with
importc](https://github.com/mashingan/anonimongo/blob/develop/examples/uploadfile/appjs.nim#L5)
example.
> What is the point of an {.exportc.}
Calling the callback which defined with exportc pragma in
[appjs.nim](https://github.com/mashingan/anonimongo/blob/develop/examples/uploadfile/appjs.nim#L5)
example.
In your 2nd example, you didn't need any of those case, importing and/or
exporting, just got away with the provided procs from library.
Remove the `exportc` and `importc` in my example and see if you can get away
without those pragma.
