Filter nil values from Clojure map?

Question

What is the best way to filter nil values from a Clojure map {}?

{ :a :x :b nil :c :z }
;;=>  { :a :x, :c :z }

Answer 1

I use following code:

(into {} (filter val {:a 1, :b 2, :c nil}))
;;=> {:a 1, :b 2}

NOTE: this will remove false values as well as nils