Pass Java static method to Clojure function args

Question

Syntax error when passing Java static method to Clojure function args directly:

(filter Character/isUpperCase "aBcD")

Why does it want the wrapper then work?

(filter #(Character/isUpperCase %) "aBcD")

score 1 · Answer 1 · answered Apr 21 '20 at 16:10

1

Because filter takes a Clojure function as first argument, and one or more collections as rest.

A Java method is not a Clojure function. Wrapping the method in an anonymous function makes it one.

answered Apr 21 '20 at 16:10

NielsK

1 Answers1