A Clojure function that always returns nil

Question

Is there a function in Clojure that always returns nil no matter what the input is?

I know I could write (fn [_] nil) but is there a built-in function?

Answer 1

You can use constantly to return a function which always returns the given value e.g.

(constantly nil)

Note the returned function takes an arbitrary number of parameters while yours only allows one.