mapped?

tests whether the provided forms support keyed lookup

If all forms evaluate to mapped values, then this function will return #t (true). A mapped value supports keyed lookup through functions like get and contains?.

An Example

(mapped? {:name "bill"} #{:name :age} [1 2 3])

This example will return #f (false) because the third form is a vector.

Like most predicates, this function can also be negated by prepending the ! character. This means that all the provided forms must not be mapped.

(!mapped? "hello" [1 2 3])

This example will return #t (true).