replicate -package:Cabal is:exact -package:base package:ghc

replicate :: Int -> a -> [a]
ghc GHC.Prelude
replicate n x is a list of length n with x the value of every element. It is an instance of the more general genericReplicate, in which n may be of any integral type. 
>>> replicate 0 True
[]

>>> replicate (-1) True
[]

>>> replicate 4 True
[True,True,True,True]