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
-
Are you posting in the right place? Check out Where do I post X? to know for sure.
-
Posts may use any of the Perl Monks Approved HTML tags. Currently these include the following:
<code> <a> <b> <big>
<blockquote> <br /> <dd>
<dl> <dt> <em> <font>
<h1> <h2> <h3> <h4>
<h5> <h6> <hr /> <i>
<li> <nbsp> <ol> <p>
<small> <strike> <strong>
<sub> <sup> <table>
<td> <th> <tr> <tt>
<u> <ul>
-
Snippets of code should be wrapped in
<code> tags not
<pre> tags. In fact, <pre>
tags should generally be avoided. If they must
be used, extreme care should be
taken to ensure that their contents do not
have long lines (<70 chars), in order to prevent
horizontal scrolling (and possible janitor
intervention).
-
Want more info? How to link
or How to display code and escape characters
are good places to start.