VBScript IsNull Fonksiyon
Definition da Ayyuka
IsNull Fonksiyon za a iya kuma samar da burin bayanin da ya nufin sabon wata anfani ko ba, yadda ake cikin burin Boolean. Idan anfani ya kasance Null, za a samar da True, kuma idan ba, za a samar da False.
Syntax
IsNull(expression)
| Parameter | Description |
|---|---|
| expression | Wajib. Anfani. |
Misal
dim x document.write(IsNull(x)) x=10 document.write(IsNull(x)) x=Empty document.write(IsNull(x)) x=Null document.write(IsNull(x))
A cikin:
False False False True
