oh, so anyway, i put it in that specific place because I wasn't sure if, without it, l1 would just be some sort of smart, lazy list that only exists when you start trying to get the values. I didn't think so, but, again, I'm just trying to shotgun the problem.
On Sun, Jan 25, 2009 at 1:57 PM, e <evier...@gmail.com> wrote: > people are paying a lot of attention to "pure" functional languages, which > I think mean ones that don't ever destroy data structures out from under > people pointing at them. Instead, people who need different views just get > their own different views -- possibly reusing common components. > > This other thing called "lazy" seems to mean that you don't need to do any > work until someone asks for the results. . . .and then you do the minimum > amount of work that's being asked for. I've heard of a Unix analogy: if you > do a grep of just the first 5 times some pattern occurs, the whole pipeline > can shut down after those 5 are found. The leading 'grep' needn't actually > keep scanning the file (incidentally, I'm not sure that works right on > windows/DOS pipes, where a copy of the whole file is sent across the pipe > before even finding out what's being asked for). > > I'm hoping that "doall" gets rid of the laziness folks take a lot of pride > in . . . .and makes it work like DOS. Otherwise, the timing won't really > work. I'm asking with this question whether the contrib version is still > being lazy and returning to (time) without doing much . . . and if so, how > can I force it to actually do the work? > > > On Sun, Jan 25, 2009 at 11:04 AM, Emeka <emekami...@gmail.com> wrote: > >> Hi e, >> >> I'm still learning the basics, very much like you( I guess you are ahead >> of me in Clojure). However, I have a question for you and not an answer to >> your questions. Why do you have doall here (def l1 (doall (take 50000 >> (repeatedly #(rand-int 3000))))) . From my little knowledge of Clojure, take >> 50000 would cause 'repeatedly' to be limited to 50000 times and (repeatedly >> #(rand-int 3000) is an argument of take , so (take 50000 (repeatedly >> #(rand-int 3000) given same results as your (doall (take 50000 >> (repeatedly #(rand-int 3000)))) and by adding doall you are just increasing >> 'noise', that's my 2 cents. >> Doall , do, dorun are used in calling multiple functions(I hope am like >> :)), like (do (doo noot) (move "niger delta")) ......... >> >> Emeka >> >> >> >> >> >> >> > --~--~---------~--~----~------------~-------~--~----~ 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 -~----------~----~----~----~------~----~------~--~---
