If value missing?

[Mike Patterson]

How do I compare if a value it missing?
I want to use a second date if the first date is missing.

#Imagine my vars have this data
$date1="";
$date2="10/2/1997";

if ($date1 eq "") {                #do I use "", MISSING key word ?????
    $date1 = $date2;
}

Thanks,
Mike


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