Rails: erb + javascript question

Question

Can I have conditional javascript in my show.erb.html files?

Something like this:

<%- if File.exists?("/leggle/data/tree_xml.xml") %>
  <script type="text/javascript"> 
    ...code...
  </script>
<%- end %>

and have the javascript code appear only if that file exists??

Zepplock · Accepted Answer · 2011-09-14 18:43:33Z

2

Yes you can. The better way to do it though is to use unobtrusive JavaScript (UJS) which will keep JS and HTML separated (just like Model/View/Controller). In your case you'll either have or not have a tag (for example) with a JavaScript with assigned action to it.

answered Sep 14, 2011 at 18:43

Zepplock

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Comments

MrDanA · Accepted Answer · 2011-09-14 18:40:08Z

1

Yes. With something like this, it's always easy to just try it out, visit the page, and check the page source to see if it's there (or see if the JS action happened).

answered Sep 14, 2011 at 18:40

MrDanA

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