hello guys!

How can I check that a variable I have is numeric before comparison in order not to get the 'Argument "f" isn't numeric in numeric lt (<) at ..' warning, as in:
my $foo = 'xxx';

if ($foo < 4.556) {   # will throw the warning
  # do something
}

[download]
Trying to match to a regexp /^\d$ is not enough when dealing with fractions (because of th period).

Thanks

Hotshot

In reply to numeric comparison by hotshot

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