On Sat, 22 Dec 2012 08:40:58 +0100, 7stud -- <lists / ruby-forum.com> wrote:
> Explain in detail what do you think a \ at the end of the line does?

It allows one to continue a line that would otherwise be terminated. Contrived example:

a = 5
+ 2
puts a
# => 5

a = 5 \
+ 2
puts a
# => 7

It wasn't necessary in OP's example, but I also think it should work there.

-- 
Matma Rex