flip package:relude

flip f takes its (first) two arguments in the reverse order of f.

flip f x y = f y x

flip . flip = id

Examples

>>> flip (++) "hello" "world"
"worldhello"

>>> let (.>) = flip (.) in (+1) .> show $ 5
"6"

Similar to foldl' but takes a function with its arguments flipped.

>>> flipfoldl' (/) 5 [2,3] :: Rational
15 % 2

This function can be useful for constructing containers from lists.