From: "Marvin Gülker" <marvin.guelker@...>
Date: 2010-08-05T05:14:09+09:00
Subject: Re: A little problem

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Am 04.08.2010 21:57, schrieb Amir Ebrahimifard:
> Hi
> What is difference between these 2 codes ?
> (when I executed these codes result was the same )
> 
> ---------------------
> def welcome1( name )
>  puts "Hello#{name}"
> end
> 
> def welcome2( name )
>  puts "Hello"+name
> end
> 
> welcome1( Amir )
> welcome2( Amir )
> 
> ---------------------


Try this:

welcome1(3)
welcome2(3)

You'll see the difference. It's because a string interpolation as in
your first example implicitly calls #to_s on it's result.

Vale,
Marvin
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