One other thing to consider is partial application. The collection functions tend to put the most-likely-to-be-curried arguments first. For example:
(def sum (partial reduce + 0)) Compare to coll-reduce, which dispatches on the type of the first argument: (require '[clojure.core.protocols :refer (coll-reduce)]) (def sum #(coll-reduce % + 0)) On Tuesday, March 12, 2013 1:29:31 PM UTC-4, Sean Corfield wrote: > > On Tue, Mar 12, 2013 at 10:21 AM, Neale Swinnerton > <ne...@isismanor.com<javascript:>> > wrote: > > if designing from scratch should we favour being threadable with -> or > ->> ? > > My understanding is that the two threading macros are there to support > two existing standard idioms in Clojure: > * functions operating on collections tend to have the collection in > the last argument slot (so you use ->>) > * other functions - where the first argument is usually the cascade > point so you use -> > > (I remember reading a better articulated explanation than that but > can't find the link easily - hopefully you get the idea) > -- > Sean A Corfield -- (904) 302-SEAN > An Architect's View -- http://corfield.org/ > World Singles, LLC. -- http://worldsingles.com/ > > "Perfection is the enemy of the good." > -- Gustave Flaubert, French realist novelist (1821-1880) > -- -- 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 Note that posts from new members are moderated - please be patient with your first post. 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 --- You received this message because you are subscribed to the Google Groups "Clojure" group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
