From: Max Norman <maxnorman@...>
Date: 2009-07-17T09:09:32+09:00
Subject: Re: Need Help with a Very, Very Simple Program

David A. Black wrote:
> Hi --
> 
> On Fri, 17 Jul 2009, Max Norman wrote:
> 
>> I'm almost an absolute novice in Ruby; it is my first language and I
>> just began learning the basics yesterday, using Chris Pine's 'Learning
>> to Program.'
> 
> Welcome to Ruby!
> 
>>
>> I'm receiving this error: String can't be coerced into Fixnum
>> (TypeError).' Why can't this variable--which contains a numeric
>> string--be converted into an integer?
> 
> The reason is that better is an integer, but "That's better." is a
> string. So it's like you're trying to do:
> 
>    5 + "hello"
> 
> and that doesn't work. You can convert back:
> 
>    puts better.to_s + "...That's better"
> 
> or use Ruby's string interpolation syntax, which inserts expressions
> into strings, via the #{} construct, and does the conversion for you:
> 
>    puts "#{better}...That's better."
> 
> I've interpolated better, not better.to_s, and it will automatically
> be to_s'd for me.
> 
> 
> David

> Welcome to Ruby!
Thanks! I look forward to learning what appears to be an incredibly 
dynamic language.


Ahh...I see. Thank you for that explanation. It's instances such as 
these that allow a few basic concepts to come together.

-- 
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