Having not seen it listed, here's yet another way to do it
my @arr1 = ("foo", "", "bar", "", "baz");
my @arr2 = grep $_, @arr1;
{
$" = ', ';
print "@arr1\n@arr2\n";
}
Since this tests for each element in a boolean context, it will ignore any element
perl considers to be
false, which includes empty strings (
""). However this also has the pitfall of dropping stuff you might want to keep e.g
qw(0 1 2) --> (1 2).
That was the more "
perlish" way to do it, but if you're determined to use a loop try this
my @arr1 = ("foo", "", "bar", "", "baz");
my @arr2;
foreach (@arr1) {
push @arr2, $_ if $_ ne '';
}
HTH
broquaint
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