Re^2: Basic list manipulation, and a bit of map() confusion...

"for" over an array is optimized; this works just as well from a memory perspective:

for my $a_val (@a) {
    (my $s = $a_val) =~ s/x//g;
    push @b, $s if $s;
}
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Re^3: Basic list manipulation, and a bit of map() confusion... by ikegami (Patriarch) on Feb 25, 2008 at 19:23 UTC
Thanks. I suspected as much — I already realized naught-but-an-array was special — but I didn't have time to check it when I posted the grandparent.	[reply]