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Ok, let me try this again.

I have code that says something like:

if X[1944] == "" or X[1944] == 0 then X[1944] = 9999  

I want this to work as intended, i.e., if the value of
X[1944] is "" or 0, then it will be changed to 9999.
However, I don't have any way of telling whether the
existing value of X[1944] is a string or a number. I
have hundreds of these expressions, and don't want to
change each one to test the type of the variable
before doing the comparisons. Is there any way to do
this without modifying all these expressions?