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RE: Array question...
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From:
John Edwards
Date:
March 28, 2002 09:04
Subject:
RE: Array question...
Message ID:
2FB59B145095D511A7C90050BAC349F3173459@MAIL
try
if (defined @array) {
# do something
} else {
# It's not been created, do something else
}
HTH
John
-----Original Message-----
From: Michael D. Risser [mailto:michael@visionpro.com]
Sent: 28 March 2002 13:55
To: beginners@perl.org
Subject: Array question...
OK here's the problem:
I have an array that may or may not have been assigned to, if it has been
assigned to I need to do one thing, otherwise I need to do something else.
I've tried many variations, but I'm having trouble determining if it has
been
assigned to.
if(undef @myArray) {
# Do thing1
} elsif(!undef @myArray) {
# Do thing2
}
and
if ($myArray[0] ne "") {
# thing1
} else {
# thing2
}
as well as a few other variations. Printing out the array BEFORE the if
block
shows nothing in the array, yet it does thing1.
After trying many different methods, I am totally lost, please help me!
TIA
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