Feature #20894
Updated by kyanagi (Kouhei Yanagita) 5 days ago
`Range#last(n)` raises an exception on beginless ranges.
```
(..5).last(3) #=> can't iterate from NilClass (TypeError)
```
Since Ruby 3.3, `Range#reverse_each` for beginless ranges with an integer end has been allowed.
```
(..5).reverse_each { p _1 } #=> 5, 4, 3, 2, 1, ...
```
Therefore, shouldn't `Range#last(n)` for such ranges also be acceptable?
```
# before
(..5).last(3) #=> => can't iterate from NilClass (TypeError)
# after
(..5).last(3) #=> => [3, 4, 5]
```
If this is accepted, a similar change could be considered for `Range#max(n)` as well.
https://github.com/ruby/ruby/pull/12084