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Asked: 2026-06-13T11:37:50+00:00

I’m using Rails 3.0. I want to add a Javascript file show_javascript.js that is

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I’m using Rails 3.0. I want to add a Javascript file show_javascript.js that is in /public/javascripts/ to a view show.html.erb.

The show.html.erb file takes the <head>...</head> part from the template application.html.erb

I’m wondering how I should add it.

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1 Answer

  1. Editorial Team

    Assuming you have a generic stylesheet layout you could add the following to application.html.erb:

    <%= javascript_link_tag 'show' if params[:action] == 'show' %>

    You could even use content_for params plus yield in the <head> section like so:

    layout.html.erb
<head>
  <%= yield(:header) if @content_for_header %>
</head>

product/show.html.erb
<% content_for :header do -%>
  <%= javascript_link_tag 'show_product' %>
<% end -%>
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