From: "nobu (Nobuyoshi Nakada) via ruby-core" <ruby-core@...>
Date: 2025-04-27T09:32:43+00:00
Subject: [ruby-core:121742] [Ruby Feature#21284] Request: add `Array#pad` method

Issue #21284 has been updated by nobu (Nobuyoshi Nakada).


Current Ruby doesn't have start-exclusive range.
`^..` is so-called neko-operator in Perl 6, and just this request reminded me of it, sorry.

----------------------------------------
Feature #21284: Request: add `Array#pad` method
https://bugs.ruby-lang.org/issues/21284#change-112798

* Author: MatzFan (Brian Cohen)
* Status: Open
----------------------------------------
A method to pad an array of arbitrary length with objects up to a specified array size does not currently exist.

`Array#fill` does not do this and I therefore propose the following method:

``` ruby
class Array
  def pad(pad_to_length, object = nil)
    fill(object, size, pad_to_length - size)
  end
end
```

I have provided an [answer](https://stackoverflow.com/a/79591610/4114896) to a Stack Overflow question asking how this can be done in Ruby. I've also explained in a comment on the answer which suggests using `Array#fill` why this does not meet the exact need.



-- 
https://bugs.ruby-lang.org/
 ______________________________________________
 ruby-core mailing list -- ruby-core@ml.ruby-lang.org
 To unsubscribe send an email to ruby-core-leave@ml.ruby-lang.org
 ruby-core info -- https://ml.ruby-lang.org/mailman3/lists/ruby-core.ml.ruby-lang.org/