Apparently a list can be destructured as a map, but a vector cannot. The "& args" syntax returns the result as a list, not a vector.
- James On 27 August 2014 19:20, John Gabriele <[email protected]> wrote: > Why is it that although this works: > > ~~~clojure > (defn foo [& args] (let [{:keys [a b]} args] (str a \~ b))) > ;;=> #'some-app.core/foo > (foo :a 1 :b 2) > ;;=> "1~2" > ~~~ > > this does not: > > ~~~clojure > (let [{:keys [a b]} [:a 1 :b 2 :c 3]] (str a \~ b)) > ;;=> "~" > ~~~ > > ? > > And even stranger, *this* *does* work: > > ~~~clojure > ;; Changed vector to a list. > (let [{:keys [a b]} '(:a 1 :b 2 :c 3)] (str a \~ b)) > ;;=> "1~2" > ~~~ > > ? > > Incidentally, I see that the following `let` also does indeed work: > > ~~~clojure > (let [ [& {:keys [a b]}] [:a 1 :b 2 :c 3] ] (str a \~ b)) > ;;=> "1~2" > ~~~ > > Thanks! > > -- > 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 unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > For more options, visit https://groups.google.com/d/optout. > -- 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 unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
