From: Xavier Noria <fxn@...>
Date: 2007-08-26T18:48:00+09:00
Subject: Re: String interpolation

On Aug 26, 2007, at 11:20 AM, 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?

You normally use a templating system, for example:

   require 'erb'

   b = ERB.new("a is <%= a %>")

   a = 5
   puts b.result(binding) # -> a is 5

   a = 6
   puts b.result(binding) # -> a is 6

-- fxn