Empty string is False right?

[Steve Holden]

AJ Ostergaard wrote:
> I'm not suggesting it's not operating as advertised - I'm suggesting the
> 'advertising' is slightly sguiffy if you catch my drift. I guess it's
> just me that finds it slightly counter intuitive. Surely intuitively the
> expression is "and" and therefore should always return a boolean?
> 
> I'll shut up now. ;)
> 
You might think so, and it wouldn't be an entirely unreasonable thought,
but in practice it makes a lot of sense to retain the original value
where possible.

The fact is that any left-hand operand that evaluates to false in a
Boolean context can be used as it stands rather than being converted to
Boolean first. So the conversion is essentially useless processing.

regards
 Steve
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