[ruby-core:115245] [Ruby master Feature#19987] add sample method to Range

Issue #19987 has been updated by ufuk (Ufuk Kayserilioglu).


The `first` call works because `Range` is an `Enumerable`, and since getting the first element is an act of enumeration. On the other hand, `sample` needs to know the full list to do what it is doing, so can't be seen as an act of enumeration.

For example, `first` would work with an unbounded enumerable, but there is no way `sample` could:
```ruby
(1..).first(5)
# => [1, 2, 3, 4, 5]
```

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Feature #19987: add sample method to Range
https://bugs.ruby-lang.org/issues/19987#change-105158

* Author: [e-mail] (Andras Horvath)
* Status: Open
* Priority: Normal
----------------------------------------
Dear Devs, I'd like to suggest a change. Since the following works:

(1..99).first(5)

Therefore this one could be logical and useful to work:

(1..99).sample(5)

Thanks,
Andras



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