Remove second and succeeding copies of repeated adjacent {list} items in-place. Returns {list}. If you want a list to remain unmodified make a copy first:

:let newlist = uniq(copy(mylist))

The default compare function uses the string representation of each item. For the use of {func} and {dict} see sort().

Returns zero if {list} is not a List.

Can also be used as a method:

mylist->uniq()