On Friday, 10 January 2025 at 03:16:51 UTC, monkyyy wrote: > > Well: > 1) `[1,2,3,4,5].Filter!(a=>a==3).back` should equal 3, in yours > it will equal 5 Thank you for your notice. I tested your notice and I think you are wrong. So you are confusing front() with back(). SDB at 79