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Declared Variable or not
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Information générale
Forum:
Visual FoxPro
Catégorie:
Codage, syntaxe et commandes
Divers
Thread ID:
00392683
Message ID:
00392689
Vues:
9
>Is there a way to check to see if a variable exists or not. For instance, if var1 exists, do whatever, but if not, declare it and then do it.
>
>Same question goes for arrays and objects. If form exists, do something... if not, do something else or create it.

TYPE('var1') or VARTYPE(var1) equals "U" is about as close as you can get. If the variable's scope is defined (LOCAL var1), they'll (the functions) return "L"
George

Ubi caritas et amor, deus ibi est
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