Re: A trivial question about type and class

I really appreciate your answer... and exciting 'Clojure', Rich. :) --~--~-~--~~~---~--~~ 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 t

Re: A trivial question about type and class

Thanks hoeck and mb for your detailed explanation! Now I can understand your points. :) It's so exciting to read 'Programming Clojure', and I'm really happy that 'a lisp book' is printed from 'The Pragmatic Programmers', which is my favorite book publisher. --~--~-~--~~~---

Re: A trivial question about type and class

On Nov 6, 7:50 am, mb <[EMAIL PROTECTED]> wrote: > Hi, > > On 6 Nov., 13:30, Chanwoo Yoo <[EMAIL PROTECTED]> wrote: > > > > Is {:a 1} not a hash-map? It seems that there is some inconsistency... > > Clojure holds promises about the interface and the performance > characteristics of the provided

Re: A trivial question about type and class

Hi, On 6 Nov., 13:30, Chanwoo Yoo <[EMAIL PROTECTED]> wrote: > > Is {:a 1} not a hash-map? It seems that there is some inconsistency... Clojure holds promises about the interface and the performance characteristics of the provided functions. In general Clojure is a lot about abstract interfaces.

Re: A trivial question about type and class

On Nov 6, 8:27 am, "Michael Wood" <[EMAIL PROTECTED]> wrote: > On Thu, Nov 6, 2008 at 8:25 AM, Chanwoo Yoo <[EMAIL PROTECTED]> wrote: > > > Hi all. In Stuart's book - Programming Clojure, there is a multi > > method like following: > > > (defmulti blank? class) > > (defmethod blank? String [s] (

Re: A trivial question about type and class

Aha, I'm sorry for my laziness and spamming. {:a 1} is not a hash-map. I guess there is some reason of performance about this... Anyway, as mac pointed out, dispatching based on types will be inappropriate to clojure data structures. Thank you mac for the thread link~ user> (class {:a 1}) #=cloju

Re: A trivial question about type and class

Thanks~ "clojure.lang.PersistentHashMap" works~ :) But I feel something is strange.. See next code, especially arrowed line. user> clojure.lang.PersistentHashMap #=clojure.lang.PersistentHashMap user> (= (class {:a 1 :b 2}) clojure.lang.PersistentHashMap) true user> (= (class {}) clojure.lang.Per

Re: A trivial question about type and class

On Thu, Nov 6, 2008 at 8:25 AM, Chanwoo Yoo <[EMAIL PROTECTED]> wrote: > > Hi all. In Stuart's book - Programming Clojure, there is a multi > method like following: > > (defmulti blank? class) > (defmethod blank? String [s] (every? #{\space} s)) > (defmethod blank? nil [_] true) > > After reading

Re: A trivial question about type and class

On 6 Nov, 07:25, Chanwoo Yoo <[EMAIL PROTECTED]> wrote: > Hi all. In Stuart's book - Programming Clojure, there is a multi > method like following: > > (defmulti blank? class) > (defmethod blank? String [s] (every? #{\space} s)) > (defmethod blank? nil [_] true) > > After reading the method, I wa

A trivial question about type and class

Hi all. In Stuart's book - Programming Clojure, there is a multi method like following: (defmulti blank? class) (defmethod blank? String [s] (every? #{\space} s)) (defmethod blank? nil [_] true) After reading the method, I was curious about type or class of native data structures of Clojure. So