# Define === for some classes

**URL:** <https://www.ruby-forum.com/t/define-for-some-classes/173069>\
**Category:** Development\
**Created:** [August 1, 2009, 3:17pm UTC](https://www.ruby-forum.com/t/define-for-some-classes/173069 "2009-08-01T15:17:22Z")\
**Posts on this page:** 2\
**Page:** 1

<div class="post-metadata">

**Author:** ![SASADA\_Koichi](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/s/f1d935/32.png) [@SASADA\_Koichi](https://www.ruby-forum.com/u/SASADA_Koichi)\
**Post date:** [August 1, 2009, 3:17pm UTC](https://www.ruby-forum.com/t/define-for-some-classes/173069/1 "2009-08-01T15:17:22Z")

</div>

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_1:  
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---

<div class="post-metadata">

**Author:** ![SASADA\_Koichi](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/s/f1d935/32.png) [@SASADA\_Koichi](https://www.ruby-forum.com/u/SASADA_Koichi)\
**Post date:** [August 1, 2009, 5:45pm UTC](https://www.ruby-forum.com/t/define-for-some-classes/173069/2 "2009-08-01T17:45:25Z")

</div>

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In message “Re: [ruby-dev:38977] define === for some classes”  
on Sat, 1 Aug 2009 22:16:42 +0900, SASADA Koichi [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid)  
writes:

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|  
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