What is the difference between <%= … %> and <% … %> in Ruby on Rails

Question

Does it have something to do with output?

So, <%= ...code... %> is used for outputting after code is executed, and <% ...code... %>

Answer 1

<%= is used to output the value of a single expression, e.g.

<%= object.attribute %>
<%= link_to 'Link Title', link_path %>

while <% is used to execute arbitrary Ruby code.