# Render :partial

**URL:** <https://www.ruby-forum.com/t/render-partial/90974>\
**Category:** Rails\
**Created:** [April 3, 2007, 2:25pm UTC](https://www.ruby-forum.com/t/render-partial/90974 "2007-04-03T14:25:17Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![j-merrill](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/j/aeb1de/32.png) [@j-merrill](https://www.ruby-forum.com/u/j-merrill)\
**Post date:** [April 3, 2007, 2:25pm UTC](https://www.ruby-forum.com/t/render-partial/90974/1 "2007-04-03T14:25:17Z")

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Hi,

I’m using  
\<%=render :partial =\>“comment/post\_comment”  
,:collection=\>@post.comments%\>

to render all comments of a post, but how do I know inside the partial  
html if a the entry is even or odd, i.e, I need to have the zebra  
effect.

Thnaks,

jp

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<div class="post-metadata">

**Author:** ![j-merrill](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/j/aeb1de/32.png) [@j-merrill](https://www.ruby-forum.com/u/j-merrill)\
**Post date:** [April 3, 2007, 2:36pm UTC](https://www.ruby-forum.com/t/render-partial/90974/2 "2007-04-03T14:36:25Z")

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just use the cycle() helper method

ex:

- "\> ... 

[http://api.rubyonrails.org/classes/ActionView/Helpers/TextHelper.html#M000628](http://api.rubyonrails.org/classes/ActionView/Helpers/TextHelper.html#M000628)