I was trying to combine 2 maps into a new map, as you can see here. I
printed both maps to the screen so I could see that, indeed, they were both
maps. And yet I got a NullPointerException on the last line here:
(defn update-config
[more-config]
(swap! config-holder
(fn [old-config]
(let [default-config (if old-config old-config {})]
(println "default-config ")
(clojure.pprint/pprint default-config)
(println "more-config")
(clojure.pprint/pprint more-config)
(into {} default-config more-config)))))
I took the last line and changed it so I only had the second map merging
with the first map:
(into default-config more-config)
This seems to fix the problem.
Perhaps I have "into" and "merge" confused. What was I doing wrong?
--
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 unsubscribe from this group and stop receiving emails from it, send an email
to clojure+unsubscr...@googlegroups.com.
For more options, visit https://groups.google.com/d/optout.
