An `each` statement is basically a loop in which you can define a variable. However, you can only use that variable within the statement itself. If you need that variable outside of the statement, use `do`.

Define variable within `each`

#Each statements do not allow their variables to be used outside of the statement.
<%= friends.each{|friend| friend['children']} %>

#To do this use `do`.
<% friends.each do
  |friend| @uno = friend['name']
    end %>

<%= "#{@uno}" %>