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assf also consumes a list of pairs (#2638)

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* assf also consumes a list of pairs

* Address PR feedback (list? -> pair?)
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sorawee 2019-05-13 05:06:42 -07:00 committed by Alex Knauth
parent 0d55a05b46
commit 842769c501
1 changed files with 2 additions and 2 deletions
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pkgs/racket-doc/scribblings/reference/pairs.scrbl
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@ -667,8 +667,8 @@ Like @racket[assoc], but finds an element using @racket[eq?].
(assq 'c (list (list 'a 'b) (list 'c 'd) (list 'e 'f)))]}
@defproc[(assf [proc procedure?] [lst list?])
(or/c list? #f)]{
@defproc[(assf [proc procedure?] [lst (listof pair?)])
(or/c pair? #f)]{
Like @racket[assoc], but finds an element using the predicate
@racket[proc]; an element is found when @racket[proc] applied to the