From: Gregory Brown <gregory.t.brown@...>
Date: 2008-08-01T03:14:23+09:00
Subject: Re: Question on do block

On Thu, Jul 31, 2008 at 2:09 PM, CompGeek78 <keven.denen@gmail.com> wrote:

> The problem I ran into is in changing the > to a =.
>
> def mtdarry
>  10.times do |num|
>    square = num * num
>    return num, square if num = 7
>  end
> end

You want an equality check, not assignment.

>> a = 1
=> 1
>> a == 1
=> true
>> a == 2
=> false

num = 7 is always true, because all values except false and nil are
true in the boolean sense in Ruby.
num == 7 is only true when num is 7.

-greg