Looks like this is now implemented:
$ perl6-m -e 'say [1,2,3].combinations(2).perl'
([1, 2], [1, 3], [2, 3]).list
$ perl6-p -e 'say [1,2,3].combinations(2).perl'
([1, 2], [1, 3], [2, 3]).list
$ perl6-j -e 'say [1,2,3].combinations(2).perl'
([1, 2], [1, 3], [2, 3]).list
There are tests in S32-list
# New Ticket Created by "Carl Mäsak"
# Please include the string: [perl #120061]
# in the subject line of all future correspondence about this issue.
# https://rt.perl.org:443/rt3/Ticket/Display.html?id=120061 >
r: say [1,2,3].combinations
rakudo 0808ac: OUTPUT«No such method 'combinations'
