Does it matter which is "more efficient"? Are you having a speed problem? Have you run anything thru Benchmark?

Dijkstra says "Premature optimization is the root of all evil". My corrollary is that "'Unnecessary' is, by definition, premature."

xoxo,
Andy

%_=split/;/,".;;n;u;e;ot;t;her;c; ".   #   Andy Lester
'Perl ;@; a;a;j;m;er;y;t;p;n;d;s;o;'.  #   http://petdance.com
"hack";print map delete$_{$_},split//,q<   andy@petdance.com   >