# List of defined classes/modules
**URL:** https://rubytalk.org/t/list-of-defined-classes-modules/9738
**Category:** ruby-talk
**Created:** [19 January 2004 04:20 UTC](https://rubytalk.org/t/list-of-defined-classes-modules/9738 "2004-01-19T04:20:01Z")
**Posts on this page:** 6
**Page:** 1
### Author:  [@Mark\_J\_Reed](https://rubytalk.org/u/Mark_J_Reed)
#### Post date: [19 January 2004 04:20 UTC](https://rubytalk.org/t/list-of-defined-classes-modules/9738/1 "2004-01-19T04:20:01Z")
How can I programmatically determine what classes and modules
are defined?
-Mark
---
### Author:  [@gga](https://rubytalk.org/u/gga)
#### Post date: [19 January 2004 04:45 UTC](https://rubytalk.org/t/list-of-defined-classes-modules/9738/2 "2004-01-19T04:45:02Z")
> How can I programmatically determine what classes and modules
> are defined?
Look up ObjectSpace in the Pickaxe book.
---
### Author:  [@Mark\_J\_Reed](https://rubytalk.org/u/Mark_J_Reed)
#### Post date: [19 January 2004 05:10 UTC](https://rubytalk.org/t/list-of-defined-classes-modules/9738/3 "2004-01-19T05:10:02Z")
Ah, thank you very much!
Odd that it doesn’t include Enumerable, though, with :each aliased to
:each\_object . . .
-Mark
> **···**
>
> On Mon, Jan 19, 2004 at 04:41:57AM +0000, GGarramuno wrote:
>
> > > How can I programmatically determine what classes and modules
> > > are defined?
> >
> > Look up ObjectSpace in the Pickaxe book.
---
### Author:  [@KONTRA\_Gergely](https://rubytalk.org/u/KONTRA_Gergely)
#### Post date: [19 January 2004 09:30 UTC](https://rubytalk.org/t/list-of-defined-classes-modules/9738/4 "2004-01-19T09:30:12Z")
Enumerable is not a class, but a module.
Read the Pickaxe book!
Gergo
> **···**
>
> On 0119, Mark J. Reed wrote:
>
> > On Mon, Jan 19, 2004 at 04:41:57AM +0000, GGarramuno wrote:
> >
> > > > How can I programmatically determine what classes and modules
> > > > are defined?
> > >
> > > Look up ObjectSpace in the Pickaxe book.
> >
> > Ah, thank you very much!
> >
> > Odd that it doesn’t include Enumerable, though, with :each aliased to
> > :each\_object . . .
>
> –
> ±[Kontra, Gergely[kgergely@mcl.hu](mailto:kgergely@mcl.hu) PhD student Room IB113 ]---------+
>
> > [http://www.mcl.hu/~kgergely](http://www.mcl.hu/~kgergely) “Olyan langesz vagyok, hogy |
> > Mobil:(+36 20) 356 9656 ICQ: 175564914 poroltoval kellene jarnom” |
> > ±- Magyar php mirror es magyar php dokumentacio: [http://hu.php.net](http://hu.php.net) --+
---
### Author:  [@George2](https://rubytalk.org/u/George2)
#### Post date: [19 January 2004 10:20 UTC](https://rubytalk.org/t/list-of-defined-classes-modules/9738/5 "2004-01-19T10:20:05Z")
> > Look up ObjectSpace in the Pickaxe book.
>
> Ah, thank you very much!
>
> Odd that it doesn’t include Enumerable, though, with :each aliased to
> :each\_object . . .
See [http://www.ruby-talk.com/blade/71203](http://www.ruby-talk.com/blade/71203)
– George
---
### Author:  [@KONTRA\_Gergely](https://rubytalk.org/u/KONTRA_Gergely)
#### Post date: [19 January 2004 12:56 UTC](https://rubytalk.org/t/list-of-defined-classes-modules/9738/6 "2004-01-19T12:56:46Z")
Sorry, I misunderstood you. Forget it.
Gergo
> **···**
>
> On 0119, KONTRA Gergely wrote:
>
> > > Odd that it doesn’t include Enumerable, though, with :each aliased to
> > > :each\_object . . .
> > > Enumerable is not a class, but a module.
> > > Read the Pickaxe book!
>
> –
> ±[Kontra, Gergely[kgergely@mcl.hu](mailto:kgergely@mcl.hu) PhD student Room IB113 ]---------+
>
> > [http://www.mcl.hu/~kgergely](http://www.mcl.hu/~kgergely) “Olyan langesz vagyok, hogy |
> > Mobil:(+36 20) 356 9656 ICQ: 175564914 poroltoval kellene jarnom” |
> > ±- Magyar php mirror es magyar php dokumentacio: [http://hu.php.net](http://hu.php.net) --+