Avoiding space between HTML elements generated by Rails erb template
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I discovered this when I was trying to render a bunch of messages to response to an ajax call. The following is my erb template at first, the partial message_entry
contains a li
element which holds the message:
<% @messages.each do |m| %>
<%= render 'messages/message_entry', :message => m %>
<% end %>
And I found that the output contains spaces between each li
message. In the ajax handler I am using $(data).length
to get the count of the message, but with the spaces generate between each li
, I always get n/2
elements more.
After quite a number of fails with trying this <% -%>
kind of notation, I finally found that to avoid the spaces, you just need to write in one line. The following fixes my problem:
<% @messages.each do |m| %><%= render 'messages/message_entry', :message => m %><% end %>
Hope it helps.
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