# Display content in layout only in production mode?

**URL:** <https://www.ruby-forum.com/t/display-content-in-layout-only-in-production-mode/129373>\
**Category:** Rails\
**Created:** [February 17, 2008, 9:39pm UTC](https://www.ruby-forum.com/t/display-content-in-layout-only-in-production-mode/129373 "2008-02-17T21:39:43Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![kevin\_evans](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/k/50afbb/32.png) [@kevin\_evans](https://www.ruby-forum.com/u/kevin_evans)\
**Post date:** [February 17, 2008, 9:39pm UTC](https://www.ruby-forum.com/t/display-content-in-layout-only-in-production-mode/129373/1 "2008-02-17T21:39:43Z")

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Anyone have some tips on the best way to do this? I want to  
conditionally include some javascript only if the app is running in  
production mode…

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<div class="post-metadata">

**Author:** ![kevin\_evans](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/k/50afbb/32.png) [@kevin\_evans](https://www.ruby-forum.com/u/kevin_evans)\
**Post date:** [February 17, 2008, 10:40pm UTC](https://www.ruby-forum.com/t/display-content-in-layout-only-in-production-mode/129373/2 "2008-02-17T22:40:13Z")

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One way, perhaps not the ‘best practise’ way, would be to do:

\<%= javascript\_tag ‘your\_js\_file’ if RAILS\_ENV==‘production’ %\>

That might do it.