oldSub[2] is not a function about hyperapp HOT 3 OPEN

https://github.com/IamCarbonMan/pokegotchi

code is here. a bit messy and written in coffeescript but as far as I can tell everything meets the docs

from hyperapp.

I cannot read coffeescript, but I guess this would be the same issue I run into when using subscriptions.
I cannot see anything in the documentation related to the return value of subscription unsubscribe handler, but based on the source code the only meaningful return values are undefined or false

see line 59 in

in may case my issue was caused by using one-liner. this is failing

  ...
  return () => function_returning_something()
}

while this works perfectly fine

  ...
  return () => {
    function_returning_something()
  }
}

I am curious if changing the line 59 like this would be the fix?

        : (oldSub && oldSub[2](), false)

from hyperapp.

If you'd like, feel free to send over a patch along with a test script. If you need a hand with writing the test, just let me know and I'll be happy to help you out or show you how to get started. I hope that makes sense.

from hyperapp.