|
WANTS TO MAKE SOFTWARE WITHOUT KNOWLEDGE OF ASP? CLICK HERE
The IsEmpty function returns a Boolean value that indicates whether
a specified variable has been initialized or not. It returns
true if the variable is uninitialized; otherwise, it returns False.
The expression argument can be any expression. However, because
IsEmpty is used to determine if individual variables are initialized,
the expression argument is most often a single variable name. The
IsEmpty function returns True when passed a Variant that has been
declared but not initialized. It returns False in all other cases.
The Syntax of the IsEmpty function is :-
Example#1 :-
Code :-
dim x
document.write(IsEmpty(x) & "<br />")
x=10
document.write(IsEmpty(x) & "<br />")
x=Empty
Output :-
True
False
|
Example#2 :-
Code :-
<% =IsEmpty(notbeen) %>
Output :-
True
|
Example#3 :-
Code :-
<% =IsEmpty("This is a string.") %>
Output :-
False
|
Example#4 :-
|
Code :-
dim x
document.write(IsEmpty(x) & "<br />")
x=Null
document.write(IsEmpty(x))
Output :-
True
False
|
|
