Hmm... my try is to take that array as a file handle to read, like @ARGV;
I add up this code :
@x = qw/Foo Bar Blaz/;
#@x = qw//;
print "Before: @x$/";
while ( my $ele = <@x> ) {
next unless $ele;
print "$ele becomes ";
$ele =~ s/^(.)/x$1/;
print $ele . $/;
}
print "$/After: @x";
__END__
Then I have :
Before: Foo Bar Blaz
Foo becomes xFoo
Bar becomes xBar
Blaz becomes xBlaz
After: Foo Bar Blaz
Is this work out properly by accident? This is what I want though...
My observation is:
if that's a empty array, it skips fine.
And, without the diamond quote, it loops forever...
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