Pastable version of Generating a list of 3 entries with the rest hidden

<pre class='prettyprint' language='ruby'>def format_category_list(sub_categories)
    count = sub_categories.count
    list = &quot;&quot;
  
    if count &lt;= 3
      sub_categories.each do |category|
        list &lt;&lt; content_tag(:li, link_to(category.name, root_path))
      end
    else
      sub_categories[0..2].each do |category|
        list &lt;&lt; content_tag(:li, link_to(category.name, root_path))
      end
      list &lt;&lt; &quot;&lt;div class='hidden'&gt;&quot;
      sub_categories[3..count].each do |category|
        list &lt;&lt; content_tag(:li, link_to(category.name, root_path))
      end
      list &lt;&lt; &quot;&lt;/div&gt;&quot;
      list &lt;&lt; content_tag(:li, link_to('Show more', nil, :class =&gt; 'show-more'))
    end

list
  end</pre>
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Pastable version of Generating a list of 3 entries with the rest hidden