On: Functional Reactive Programming in Java

[edgyswingset]

> For example, when using FP in other languages I worry about how the functions I stack together to evaluate lists are implemented.

I'm only speaking for languages I know:

- C# LINQ API via IEnumerable<T> is lazy (aside from a few like Min/Max)

- F# is lazy for any Seq functions or the Lazy() computation

- Clojure is lazy for Sequence functions

You can verify all three by looking at the source on Github if you'd like.

[V-2 → edgyswingset]

A big loser here (in my opinion) is Kotlin, whose equivalent of LINQ doesn't support deferred evaluation