Comment by brandonbloom

Nice! Looks like most modern list-comprehension syntaxes.

> iteration and value accumulation are orthogonal problems which should be solved by orthogonal constructs

This is also covered to an extent by "Why Functional Programming Matters" in the discussion of laziness: https://www.cs.kent.ac.uk/people/staff/dat/miranda/whyfp90.p...

For a direct comparison of combining this syntax with "accumulation" into a lazy sequence, see Clojure's `for` macro:

https://clojuredocs.org/clojure.core/for