groupBy package:rio

The groupBy function is the non-overloaded version of group.
The groupBy function is the non-overloaded version of group.
groupBy operates like group, but uses the provided equality predicate instead of ==.
O(n) Group characters in a string according to a predicate.
The groupBy function is the non-overloaded version of group.
groupBy1 is to group1 as groupBy is to group.