IsNull
Determine whether a given value or variable reference is null.
Method Signature
IsNull(object=[any])
Arguments
Argument
Type
Required
Description
Default
object
any
true
Value to test for null.
Examples
isNull Example
Returns true if the given object is null or the given expressions evaluates to null; Returns false is otherwise.
isNull( javaCast( "null", "" ) );
Result: true
Additional Examples
v1 = "test";
writeDump( isnull( v1 ) ); // false
v2; // Defining empty variable or v2=nullValue();
writeDump( isnull( v2 ) );
// true
Related
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