Inserting rails into HTML file

Question

When writing an HTML file, why use <%= INSERT RAILS HERE %> vs. <% INSERT RAILS HERE %>

Dave Newton · Accepted Answer · 2012-06-13 01:17:22Z

2

<%= %> emits a string, <% %> runs code.

On the pedantic side, you're writing an ERb template, not an HTML file--the syntax is the same whether it's a template for HTML, JS, or whatever.

The ERB docs provide additional _{(but not complete)} information.

answered Jun 13, 2012 at 1:10

Dave Newton

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Comments

Someth Victory · Accepted Answer · 2012-06-13 01:28:09Z

0

<%= %> will return value and display in your page. Assume that you have person.name = 'Dark'

 <%= person.name %>

will display Dark in your web page.

<% %> will not return any value to your page. It just embed simple ruby code. Usually used with `control statement'.

 <% if person.present? %>
   <span><%= person.name %></span>
 <% end %>

answered Jun 13, 2012 at 1:28

Someth Victory

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Mahesh · Accepted Answer · 2012-06-13 13:49:57Z

0

When we use <%= %> it simply displays the value returned, on the html page. <% %> executed the code but doesn't dispaly it on the html page.

answered Jun 13, 2012 at 13:49

Mahesh

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