user=> (filter identity [1 2 3 nil 4 false true 1234]) (1 2 3 4 true 1234)
user=> (filter identity [1 2 3 nil 4 false true 1234]) (1 2 3 4 true 1234)
user=> (filter identity [1 2 3 nil 4 false true 1234]) (1 2 3 4 true 1234)
user=> (filter identity [1 2 3 nil 4 false true 1234])<br> (1 2 3 4 true 1234)