Ruby on Rails - HTML.ERB

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HTML.ERB is HTML mixed with Ruby, using HTML tags. All of Ruby is available for programming along with HTML.

Following is the syntax of using Ruby with HTML −

<% %>   # executes the Ruby code
<%= %>  # executes the Ruby code and displays the result

Example

<ul>
   <% @products.each do |p| %>
      <li><%=  @p.name %></li>
   <% end %>
</ul>

The output of anything in <%= %> tags is directly copied to the HTML output stream. To secure against HTML injection, use the h() function to html_escape the output

For example

<%=h @user_entered_notes %>

Please check the following link on XML Builder.

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