In the book "Programming Clojure" (p2_0, pdf, page 185) "Adding
Validation to Refs" there is this code:
(def validate-message-list (partial every? #(and (:sender %) (:text
%))))
This works fine as a validator, but when I try the code directly - not
as a validator - it returns false. I also tested with a simple "if" to
see the difference.
(every? #(:x %) {:x "s"})
-> false
(if (#(:x %) {:x "s"}) "TRUE" "FALSE")
-> "TRUE"
What do I not understand?
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