Re: exists $foo[7] and delete $foo[7]

["Matthias Urlichs" <smurf@noris.net>]

Hi,

Tom Christiansen:
> Now, could someone please tell me what to fill in for XXXXX?
> 
Nothing. There's nothing there, not even an undef() or an empty string.
That's why the array gets shorter if you delete its last value.

It's the same thing that's in $foo{bar} if @foo is (one=>1,two=>2,three=>3).

Beginners might find it suspicious that delete($a[2]) doesn't drop $a[3]
into the [2] slot instead, admittedly. The analogy I'd use is that arrays
are horizontal, and thus gravity won't pull them down.  ;-)

-- 
Matthias Urlichs  |  noris network GmbH   |   smurf@noris.de  |  ICQ: 20193661
The quote was selected randomly. Really.    |      http://www.noris.de/~smurf/
-- 
Let's flush this toilet.
			-Noah

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References to:

Tom Christiansen <tchrist@chthon.perl.com>

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