On 10-12-03 11:40 AM, Odin Liu wrote:
I consider $_ is a value-copy of the loop-element, but as shown in a
while loop inside a for loop, it seems that $_ is a reference of the
loop-element.
The loop variable for a foreach loop is the actual element of the array.
Consider:
#!/usr/bin/perl
use strict;
use warnings;
my @outer = qw( a b c );
my @inner = ( 1, 2, 3 );
foreach ( @outer ){
print "$_\n";
foreach ( @inner ){
$_ .= ' (more)';
print "\t$_\n";
}
}
__END__
Notice that @inner is modified every time through the loop.
--
Just my 0.00000002 million dollars worth,
Shawn
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as it is about coding.
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