On Tuesday, July 29, 2003, at 04:26 PM, Dar Scott wrote:
tSomeNonexistentVariable gets evaluated as a string, so that's what's in p2, which is why the "+" operation fails on the RHS.
What's more important is that string is empty, as in "", and that is not a numeral and can't be interpreted as a number.
put empty + empty --> 0
Actually in my example, p2 is not empty, it's literally the string "tSomeNonexistentVariable". I am now checking if the parameters are integers, before summing them.
Alex Rice, Software Developer Architectural Research Consultants, Inc. http://ARCplanning.com
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