1 Jun
2009
1 Jun
'09
3:52 p.m.
On Jun 01, 2009 at 17:48, Juha Heinanen jh@tutpro.com wrote:
Andrei Pelinescu-Onciul writes:
I thing if ($fU == $null)
or better: if (!defined $fU)
just for curiosity, is performance of the above two equivalent?
No, there are very minor differences:
!defined $fU fastest $fU == "" - extra string conversion $fU == $null slowest (has to go through a pv call and string or integer conversion)
Andrei