flip is:exact

flip f takes its (first) two arguments in the reverse order of f.
>>> flip (++) "hello" "world"
"worldhello"
flip f takes its (first) two arguments in the reverse order of f.
flip f takes its (first) two arguments in the reverse order of f.
>>> flip (++) "hello" "world"
"worldhello"
flip the order of the first two arguments of a function.
Strict variant of flip. Defined as:
flip f b a = f $! a $! b
Since version 0.11.0.0.