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Groups > comp.lang.ruby > #2747
| From | Vahagn Hayrapetyan <vahagnh@gmail.com> |
|---|---|
| Newsgroups | comp.lang.ruby |
| Subject | Re: Calling to_enum on a MatchData object |
| Date | 2011-04-13 06:25 -0500 |
| Organization | Service de news de lacave.net |
| Message-ID | <2ec5aead98ee85153308eb7b43e82adf@ruby-forum.com> (permalink) |
| References | <840b7dcf34f7c1ae6b2b9d80a6b55b69@ruby-forum.com> <7de49bdd11ef30170f71c5d9f9258f9b@ruby-forum.com> |
7stud -- wrote in post #991942:
> Here's how you can use an enumerator to create an infinite array--from
> which you can print out finite chunks:
>
> e = Enumerator.new do |y|
> (0..9).cycle do |num|
> y << num
> end
> end
>
>
> p e.take(15)
>
> --output:--
> [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 1, 2, 3, 4]
I just tried out (0..9).cycle {|n| puts n} in an irb session and had to
Ctrl+C it to stop the loop. However when wrapped in a Enumerator like
your example above, just an Enumerator::Generator object is returned.
What happens to the infinite loop - does it still crunch the numbers out
in the background or does it "stop" at some point? I looked at puts
e.methods.sort
but they aren't very revealing of what's going on with the loop...
--
Posted via http://www.ruby-forum.com/.
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Calling to_enum on a MatchData object Vahagn Hayrapetyan <vahagnh@gmail.com> - 2011-04-08 13:19 -0500
Re: Calling to_enum on a MatchData object 7stud -- <bbxx789_05ss@yahoo.com> - 2011-04-08 14:41 -0500
Re: Calling to_enum on a MatchData object 7stud -- <bbxx789_05ss@yahoo.com> - 2011-04-08 14:21 -0500
Re: Calling to_enum on a MatchData object 7stud -- <bbxx789_05ss@yahoo.com> - 2011-04-08 20:09 -0500
Re: Calling to_enum on a MatchData object Vahagn Hayrapetyan <vahagnh@gmail.com> - 2011-04-09 07:03 -0500
Re: Calling to_enum on a MatchData object 7stud -- <bbxx789_05ss@yahoo.com> - 2011-04-09 13:18 -0500
Re: Calling to_enum on a MatchData object Vahagn Hayrapetyan <vahagnh@gmail.com> - 2011-04-13 06:14 -0500
Re: Calling to_enum on a MatchData object Gary Wright <gwtmp01@mac.com> - 2011-04-09 14:25 -0500
Re: Calling to_enum on a MatchData object 7stud -- <bbxx789_05ss@yahoo.com> - 2011-04-09 17:17 -0500
Re: Calling to_enum on a MatchData object Vahagn Hayrapetyan <vahagnh@gmail.com> - 2011-04-13 06:28 -0500
Re: Calling to_enum on a MatchData object Gary Wright <gwtmp01@mac.com> - 2011-04-13 22:44 -0500
Re: Calling to_enum on a MatchData object 7stud -- <bbxx789_05ss@yahoo.com> - 2011-04-09 14:02 -0500
Re: Calling to_enum on a MatchData object Robert Klemme <shortcutter@googlemail.com> - 2011-04-13 06:45 -0500
Re: Calling to_enum on a MatchData object Vahagn Hayrapetyan <vahagnh@gmail.com> - 2011-04-14 11:13 -0500
Re: Calling to_enum on a MatchData object Vahagn Hayrapetyan <vahagnh@gmail.com> - 2011-04-13 06:25 -0500
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