:: Eq a => [a] -> a -> Bool -package:base-unicode-symbols -package:yesod-paginator -package:cabal-install-solver -package:Cabal-syntax -package:ghc-lib-parser package:rio
Does the element occur in the structure?
O(n) Check if the vector contains an element
O(n) Check if the vector does not contain an element (inverse
of
elem)