From: Stefan Rusterholz <apeiros@...>
Date: 2007-08-26T18:38:46+09:00
Subject: Re: String interpolation

Thomas Worm wrote:
> a = 5
> b = "#{a}"
> puts b
> 
> a = 6
> puts b
> 
> Returns:
> 5
> 5
> 
> which is clear to me, why. But is there a way to define such a string 
> and
> interpolate it at a later time?
> 
> Thomas

a = 5
b = proc { "a is now: #{a}" }
def b.to_s; call; end
puts b # !> a is now: 5
a = 6
puts b # !> a is now: 6

Enjoy

Regards
Stefan
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