Include a specific JavaScript file for a given view

Add <%= yield :javascript_includes %> to application.html.erb:

Copy<%= javascript_include_tag "application" %>
<%= yield :javascript_includes %>

Add to top of your view.html.erb:

Copy<% content_for :javascript_includes do %>
  <%= javascript_include_tag "forms.js" %>
<% end %>

Notes:

• forms.js should be located in the app/assets/javascripts directory.
• To avoid duplicate inclussion of js files, you must disable the require_tree directive in application.js. You just have to remove the equal sign:

Copy// require_tree .

More info about this subject:

• http://xn--ncoder-9ua.dk/blog/2012/02/page-specific-javascript-in-rails-3/ Show archive.org snapshot