From: "David A. Black" <dblack@...>
Date: 2009-02-02T21:34:24+09:00
Subject: Re: Variable declarations on one line

Hi --

On Mon, 2 Feb 2009, Frisco Del rosario wrote:

> a="al", b="bob", c="carl"
>
> Why is a an array containing al, bob, carl, and not a string "al"?

It's because of the precedence and assignment-order rules. It's read
as:

   a = x,y,z

which means that a is [x,y,z]. Meanwhile, y is this:

   b = "bob"

and z is this:

   c = "carl"

So you end up with a, b, and c all assigned, but not quite the way you
wanted.

Try this:

   a, b, c = "al", "bob", "carl"


David

-- 
David A. Black / Ruby Power and Light, LLC
Ruby/Rails consulting & training: http://www.rubypal.com
Coming in 2009: The Well-Grounded Rubyist (http://manning.com/black2)

http://www.wishsight.com => Independent, social wishlist management!