Lingo Dictionary > T-Z > voidP() |
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voidP()
Syntax
voidP(
variableName
)
Description
Function; determines whether the variable specified by variableName
has any value. If the variable has no value or is VOID,
this function returns TRUE
. If the variable has a value other than VOID
, this function returns FALSE.
Example
This statement checks whether the variable answer
has an initial value:
put voidP(answer)
See also
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