Returns the unique elements in a given list.
set from the list to discard duplicated values, then return a list from it.def unique_elements(li): return list(set(li)) unique_elements([1, 2, 2, 3, 4, 3]) # [1, 2, 3, 4]
Groups the elements of a list based on the given function and returns the count of elements in each group.
Groups the elements of a list based on the given function.
Creates a list with the unique values filtered out.
Finds the indexes of all elements in the given list that satisfy the provided testing function.