On Oct 23, Frank Bax said:
At 02:11 PM 10/23/05, John W. Krahn wrote:
Frank Bax wrote:
> my $aval=''; map { $aval=$aval.sprintf("%4d",$aSuit{$a}{$_}); }
@f_seq;
> my $bval=''; map { $bval=$bval.sprintf("%4d",$aSuit{$b}{$_}); }
@f_seq;
You shouldn't use map in void context, you should use a foreach loop
What is "void context"?
"Void context" means an expression whose return value is being discarded.
$x = foo(); # scalar context
@y = foo(); # list context
foo(); # void context
map() builds a list to be returned, and by not USING its return value
(that is, calling map() in void context), you're wasting resources. If
you do
map BLOCK LIST
and don't intend on saving the return value of map(), just use a for loop.
for (LIST) BLOCK
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RPI Acacia Brother #734 % the cheated, we who for every service
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