Hello users,
What is the proper design pattern to skip invalid values
when using for/list?
The programs below fails because #:continue is not recognized:
for/list ([i (in-range 0 1000)])
(let ((value (vector-ref vector i)))
(if (< 0 (length value))
value
#:continue)))
Sure, I could bypass this limitation by building the list explicitely
with plain "for + cons" or:
(define result-list
(for/list ([i (in-range 0 1000)])
(let ((value (vector-ref vector i)))
(if (< 0 (length value))
value
empty))))
=> then filter empties from result-list with another loop...
-pekka-
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