$_=0;

Shouldn't this be
    local $_ = 0;
to avoid global variable side effects (see local)? 

$_=0;
$x < $y && $_--;
$x > $y && $_++;
$_;

[download]

And how does this code differ in effect from
    $x <=> $y;
(see <=> in Equality Operators in perlop)?

(And a small point, but , (comma) is used as the delimiter in the OPed example data instead of : (colon), which you use in the s/:.+// extraction substitutions.)

Give a man a fish:  <%-{-{-{-<

In reply to Re^2: How can I sort my array numerically on part of the string? by AnomalousMonk
in thread How can I sort my array numerically on part of the string? by misterperl

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