Hi Pierre,
> On May 20, 2015, at 3:35 PM, Pierre Thibault <[email protected]> > wrote: > > Is possible to use the operator '@' alone? In the Joy Of Clojure book it is > presented as '~@'. I would like an example. There are multiple contexts in which @ could be used. One is syntactic sugar for the deref function; @x is just (deref x), where x is some reference type like an atom. ~@, unquote-splice, is an entirely different beast. It is used inside syntax-quote (a backtick, `) in macros to mean “take all of these forms and put them into this form”, e.g.: (let [xs ‘(1 2 3 4)] `(+ ~@xs)) turns into: (+ 1 2 3 4) … so the difference between it and just ~ is the “splicing”; regular unquote (~) would get you: (+ [1 2 3 4]) hth lvh > -- > 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 > <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] > <mailto:[email protected]>. > For more options, visit https://groups.google.com/d/optout > <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.
