Hi All,
I know this isn't strictly a cgi problem, but it is arising in a cgi
application. I have a loop which reads certain fields, hashed on names.
Some of my fields hold character strings, some hold numbers. Sometimes
the number field is a blank. I need a test on the field value $fieldValue
which will tell me if my field was blank regardless of whether it holds a
character string or a number.
I would like to say something like
$fieldValue = (($fieldValue == 0) or $fieldValue) ? $fieldValue : 'null'
but perl appears to have a strange interpretation of $fieldValue == 0 if
$fieldValue is a character.
Thanks
Mary
I have seen references to a function which will do the trick, but it
is not mentioned in the camel book.
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