Some resources, in case they help: 1. http://clojuredocs.org/ has documentation for core and contrib, and often has examples
<http://clojuredocs.org/>2. http://clojure.org has a lot of reading material about the language, including a nice cheat sheet ( http://clojure.org/cheatsheet) 3. http://www.clojureatlas.com offers a unique way to navigate between the pieces of the clojure language 4. if you are at a REPL, you can use the doc macro to read function doc strings: user> (doc map) ------------------------- clojure.core/map ([f coll] [f c1 c2] [f c1 c2 c3] [f c1 c2 c3 & colls]) Returns a lazy sequence consisting of the result of applying f to the set of first items of each coll, followed by applying f to the set of second items in each coll, until any one of the colls is exhausted. Any remaining items in other colls are ignored. Function f should accept number-of-colls arguments. nil On Fri, Jun 17, 2011 at 9:13 AM, octopusgrabbus <octopusgrab...@gmail.com>wrote: > Many thanks. I didn't recognize the % symbol is used similarly to the > way it's used in printf and constructing SQL query string. > > On Jun 17, 9:07 am, Ken Wesson <kwess...@gmail.com> wrote: > > On Fri, Jun 17, 2011 at 8:57 AM, octopusgrabbus > > > > <octopusgrab...@gmail.com> wrote: > > > I'm trying this in REPL > > > > > timmy=> (def ox [1 2 3 4]) > > > #'timmy/ox > > > timmy=> ox > > > [1 2 3 4] > > > timmy=> (map #(reduce str/split (seq ox) #",")) > > > java.lang.IllegalArgumentException: Wrong number of args (1) passed > > > to: core$map (NO_SOURCE_FILE:0) > > > t > > > > Yikes. > > > > Well, first of all, you need to > > > > (map #(str/split % #",") some-seq-of-strings) > > > > -- map takes a function and then one or more sequences or collections > > to iterate over. Further, the function needs to have an argument; with > > #() closures you use % to stand in for the element from the sequence. > > So > > > > (map #(* 2 %) ox) > > > > in your case would return > > > > (2 4 6 8) > > > > as a lazy sequence. > > > > Lastly, though, ox doesn't contain strings so str/split can't be used > > on them. And I don't know why you had a "reduce" in there. > > > > -- > > Protege: What is this seething mass of parentheses?! > > Master: Your father's Lisp REPL. This is the language of a true > > hacker. Not as clumsy or random as C++; a language for a more > > civilized age. > > -- > 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 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
