30-seconds-of-code/snippets/unique_elements.md

unique_elements

Returns the unique elements in a given list.

The given list is first converted to a set using the set() function. By definition, a set cannot have duplicate elements. So, the duplicate elements are automatically removed. Before returning, we convert it back to a list

def unique_elements(li):
    return list(set(li))

unique_elements([1, 2, 2, 3, 4, 3]) # [1, 2, 3, 4]