IsNull

Determine whether a given value or variable reference is null.

Method Signature

IsNull(object=[any])

Argument

Type

Required

Description

Default

object

any

true

Value to test for null.

Returns true if the given object is null or the given expressions evaluates to null; Returns false is otherwise.

isNull( javaCast( "null", "" ) );

Result: true

v1 = "test";
writeDump( isnull( v1 ) ); // false
v2; // Defining empty variable or v2=nullValue();
writeDump( isnull( v2 ) );
 // true

Last updated 1 year ago

Was this helpful?