Revisiting filter functions tonight for Kotlin Thu...

# tornadofx

[amanda.hinchman-dominguez]

Revisiting filter functions tonight for Kotlin Thursdays, but I decided to try my hand at improving code I wrote up a while ago. I know I'm close, but what's off is that I need a way to say that I don't know what the parameters for a function I want to pass in might be. Thoughts?