Just now, Carl Eastlund wrote:
> You can also write:
>
> (for*/list ([(k v) (in-hash ht)]
> [res (in-value (f k v))]
> #:when res)
> res)
[It does seem a little too verbose with the 3 mentions of `res', but
that's the same kind of verbosity as repeating `x' in:
(for/list ([x (in-range 100 110)]) x)
If there was some rule like "with no body, the last bound loop
variable(s) is used", then this becomes
(for/list ([x (in-range 100 110)]))
and the above:
(for*/list ([(k v) (in-hash ht)]
[res (in-value (f k v))]
#:when res))
]
--
((lambda (x) (x x)) (lambda (x) (x x))) Eli Barzilay:
http://barzilay.org/ Maze is Life!
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