Mthaml variable inside class

Question

I'm trying to declare a variable inside a class in mthaml, from what I've read this should do it:

$columns = 3
%div{:class => "columns large-#{$columns}"}

However this prints:

<div class="columns large-">

Answer 1

For me seems that there are several ways to reach your goal: first you do this :

- set columns = 3

and then:

%div{:class => "columns large-#{columns}"} 

or

%div(class="columns large-#{columns}")

or

.columns(class="large-#{columns}")