pull/2/head
Matthew Butterick 11 years ago
parent a3c00d0e50
commit b73cc5944d

@ -130,7 +130,7 @@ Same as @racket[->list], but returns a vector rather than a list.
(->boolean
[v any/c])
boolean?]
Returns @racket[#t] for any @racket[_v] except @racket[#f], which remains @racket[#f].
Return @racket[#t] for any @racket[_v] except @racket[#f], which remains @racket[#f]. Same as @code{(and v #t)}.
@examples[#:eval my-eval
(map ->boolean (list "string" 'symbol + '(a) #f))

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