as an aside, :1 etc. are bad keywords (accepted by some readers and not others, technically not valid according to the docs), and usually the presence of keywords like that indicates over-eager keywordizing of json input, or a misunderstanding of clojure hash-maps
On Wed, May 16, 2018 at 12:38 PM Mauricio Aldazosa < [email protected]> wrote: > Hi Renata, > > The problem with your code is that it is using *map* at the top level, > which is a function that returns a lazy sequence. You are asking clojure to > do something like: > > *Take each number n in inviteds and create a sequence of hash maps, where > each hash map has n as a key and 1 as it's value.* > > But what you really want is a function at the top level that returns a > hash map. As Colin shows, you can use *into* (here is a slightly > different way than the one he used): > > *Take each number in inviteds and create a sequence of pairs. Each pair > should have the number as it's first value, and 1 as the second. Then take > those pairs, and "pour" them into a hash map.* > > (->> inviteds > (map (fn [number] (vector number 1))) > (into {})) > > You could also do it via *reduce*: > > *Start with an empty hash map, then assoc each number in inviteds with 1 > as it's value*: > > (reduce (fn [m number] (assoc m number 1)) > {} > inviteds) > > Cheers, > Mauricio > > -- > 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.
