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How do I add custom javascript to my rails3 views?

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+1 A:

If you want to add the JavaScript before the page is loaded at all -- i.e. not through Ajax -- then there is no particular reason why you couldn't just create a _javascript.html.erb partial containing the script tags and then do the following in your view:

<%= render 'javascript' %>

The code in _javascript.html.erb would have access to the instance variables set in your controller, and you could write it the same way as a .js.erb file.

(Alternatively, you could use <%= yield :head %> in your layout file's <head> section and then <content_for :head do %><%= render 'javascript' %><% end %> in your views, if you want the script to be in the <head>.)

If you want to run the JavaScript on a page following an Ajax request, then just banging the code into your my_action.js.erb file and interpolating <%= @my_instance_variable.value %> as required will work -- the resulting code will be run on your page after the request finishes.

Nick Ragaz 2010-07-14 14:35:46

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How do I add custom javascript to my rails3 views?

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