An empty sequence is equal to nil. 2012/8/29 Ambrose Bonnaire-Sergeant <[email protected]>: > My guess is that `merge` has an invariant "if all args are nil, return nil", > making calls to `seq` "contagious" from args to return value. > > => (merge (seq {}) (seq {})) > nil > > Just a guess though. > > Thanks, > Ambrose > > On Thu, Aug 30, 2012 at 12:18 AM, Brian Marick <[email protected]> wrote: >> >> Why does `(merge)` return nil? I would have expected it to return the unit >> ({}) by analogy with things like this: >> >> (+) => 0 >> (*) => 1 >> >> ----- >> Brian Marick, Artisanal Labrador >> Contract programming in Ruby and Clojure >> Occasional consulting on Agile >> >> >> -- >> You received this message because you are subscribed to the Google >> Groups "Clojure" group. >> To post to this group, send email to [email protected] >> Note that posts from new members are moderated - please be patient with >> your first post. >> To unsubscribe from this group, send email to >> [email protected] >> 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 post to this group, send email to [email protected] > Note that posts from new members are moderated - please be patient with your > first post. > To unsubscribe from this group, send email to > [email protected] > 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 post to this group, send email to [email protected] Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/clojure?hl=en
