On Thu, Aug 30, 2012 at 12:41 AM, Joop Kiefte <[email protected]> wrote:
> An empty sequence is equal to nil. > What do you mean? => (seq? ()) true => (= nil ()) false > > 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 > -- 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
