I figured it out.
My code is going to compare keywords with non-keywords which will
returns false and hence an empty result set from filter function.
On Mar 28, 4:09 am, CuppoJava <patrickli_2...@hotmail.com> wrote:
> What exactly does the line
> (= (obj obj-locs) loc)
> do?
>
> What is an "obj" exactly? From your code it seems that an obj is going
> to be 'bottle or 'bucket. I'm not sure what happens if you treat a
> symbol as a function.
>
> -Patrick
>
> On Mar 27, 10:02 pm, HB <hubaghd...@gmail.com> wrote:
>
>
>
> > Hi,
> > Would you please have a look at this code:
>
> > (def *objects* '(bottle bucket frog chain))
>
> > (def *object-locations* {:bottle 'living-room, :bucket 'living-
> > room, :chain 'garden, :frog 'garden})
>
> > (defn objects-at [loc objs obj-locs]
> > (letfn [(is-obj-at? [obj]
> > (= (obj obj-locs) loc))]
> > (filter is-obj-at? objs)))
>
> > (println (objects-at :garden *objects* *object-locations*))
>
> > Why the result is empty? Shouldn't it be (bottle bucket)?
>
> > Thanks for help and time.
--
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
