Thanks for the replies, everyone. @Mr. Gilardi, this is for a one-time only thing. I have a function, called rep*, that builds up a vector from left to right. Another, separate function, called rep+, calls rep*, but it needs to slip in an element at the vector's beginning.
I'm considering changing rep+'s documentation to state that it will return a "collection" rather than a "vector", and then just use cons without vec. On Jun 24, 3:58 pm, "Stephen C. Gilardi" <squee...@mac.com> wrote: > On Jun 24, 2009, at 6:44 PM, arasoft wrote: > > > This also works: > > (into [-1] [0 1 2 3 4]) > > but I am more than uncertain whether it is "proper". > > Generally, the need to insert at the beginning of a vector should > trigger some close scrutiny as to whether vector is the right data > type to use in this case. > > The choice of which operations Clojure provides for each data type was > driven by a guiding principle of providing only those operations that > are efficient and appropriate for that type. > > Of the Clojure collections, "list" is the one best suited for > insertion at the front. > > --Steve > > smime.p7s > 3KViewDownload --~--~---------~--~----~------------~-------~--~----~ 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 -~----------~----~----~----~------~----~------~--~---
