From: Carlos <angus@...>
Date: 2007-01-05T18:49:01+09:00
Subject: Re: puts returns nil?

Arfon Smith wrote:
 > [...]

A method returns the value of the last statement, not a list of all of 
them. In your method, the return value of puts (which is nil, btw) is 
discarded.

> def say_moo number_of_moos
>   puts 'mooooooo...' * number_of_moos
>   'yellow submarine'
> end
> 
> x = say_moo 3

Here you call say_moo. Say_moo puts 3 moo's in you screen, then returns 
'yellow submarine'. This return value is assigned to x.

> puts x.capitalize + ', dude...'

Puts the value of x ('yellow submarine') capitalized, plus ', dude...'.

> puts x + '.'

Puts the value of x, plus a dot.

HTH. Good luck.
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