From: yermej <yermej@...>
Date: 2008-03-05T06:19:55+09:00
Subject: Re: and statement

On Mar 4, 8:23 am, Lionel Bouton <lionel-subscript...@bouton.name>
wrote:
> 7stud -- wrote:
> > Subbu wrote:
> >> Thank you so much. I looked up 'and' && operands in the PickAxe book
> >> and this is what it says:
> >> "The 'and' and && operators evaluate their first operand. If false,
> >> the expression returns the value of the first operand; otherwise, the
> >> expression returns the value of the second operand"
>
> > Which doesn't appear to be true.   Look at this:
>
> > result = (x=20)
> > puts result          #20
>
> > result = true and x=20
> > puts result        #true
>
> Precedence...
>
> result = (true and x = 20)

Or:

result = true && x = 20

The precedence is the only difference between 'and' and '&&'.