Re: What's the function that returns the opposite of a predicate?
Wonderful. I didn't think of searching for "opposite". Thanks everyone. On Apr 30, 11:25 am, "Stephen C. Gilardi" wrote: > On Apr 30, 2009, at 1:50 PM, samppi wrote: > > > I know there's a core function that takes a predicate and returns its > > opposite: > > > (defn mystery [predicate] > > (fn [x] (not (predicate x > > > I'm having a lot of trouble finding the name of it in the docs, > > though. Could anyone give me its name? Or does this function not exist > > in the core? > > Is this the one you're thinking of? > > user=> (find-doc "opposite") > - > clojure.core/complement > ([f]) > Takes a fn f and returns a fn that takes the same arguments as f, > has the same effects, if any, and returns the opposite truth value. > nil > user=> > > --Steve > > smime.p7s > 3KViewDownload --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en -~--~~~~--~~--~--~---
Re: What's the function that returns the opposite of a predicate?
On Apr 30, 2009, at 1:50 PM, samppi wrote: I know there's a core function that takes a predicate and returns its opposite: (defn mystery [predicate] (fn [x] (not (predicate x I'm having a lot of trouble finding the name of it in the docs, though. Could anyone give me its name? Or does this function not exist in the core? Is this the one you're thinking of? user=> (find-doc "opposite") - clojure.core/complement ([f]) Takes a fn f and returns a fn that takes the same arguments as f, has the same effects, if any, and returns the opposite truth value. nil user=> --Steve smime.p7s Description: S/MIME cryptographic signature
Re: What's the function that returns the opposite of a predicate?
On Thu, 30 Apr 2009 23:20:14 +0530, samppi wrote: > > I know there's a core function that takes a predicate and returns its > opposite: > > (defn mystery [predicate] > (fn [x] (not (predicate x > > I'm having a lot of trouble finding the name of it in the docs, > though. Could anyone give me its name? Or does this function not exist > in the core? user=> (doc complement) - clojure.core/complement ([f]) Takes a fn f and returns a fn that takes the same arguments as f, has the same effects, if any, and returns the opposite truth value. nil user=> Regards, Parth --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en -~--~~~~--~~--~--~---
Re: What's the function that returns the opposite of a predicate?
I think maybe you want complement: http://clojure.org/api#complement On Thu, Apr 30, 2009 at 1:50 PM, samppi wrote: > > I know there's a core function that takes a predicate and returns its > opposite: > > (defn mystery [predicate] > (fn [x] (not (predicate x > > I'm having a lot of trouble finding the name of it in the docs, > though. Could anyone give me its name? Or does this function not exist > in the core? > > > --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en -~--~~~~--~~--~--~---
What's the function that returns the opposite of a predicate?
I know there's a core function that takes a predicate and returns its opposite: (defn mystery [predicate] (fn [x] (not (predicate x I'm having a lot of trouble finding the name of it in the docs, though. Could anyone give me its name? Or does this function not exist in the core? --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en -~--~~~~--~~--~--~---
