isEmpty(): Boolean;
The isEmpty method of the JadeBytes class returns true if the receiver is empty; that is, no content has been assigned and no storage space has been allocated.
This method always returns false for singleFile instances, because the associated disk file is always present.
The following example shows the use of the isEmpty method.
vars
bytes : JadeBytes;
begin
create bytes;
write bytes.isEmpty; // Writes true
bytes.allocate(1000);
write bytes.isEmpty; // Writes false
epilog
delete bytes;
end;