So I stole your test here for a moment...

say join "\n", grep { sprintf ("%03d",$_) + 0 ne ($_/1000)*1000 } 0..9
+9999

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I needed to add a + 0 to be able to handle the trailing zero's. The funny thing is that in your case you would need to do the opposite ( "" . value) in case the value undergoes an arithmetic operation.

In reply to Re^7: number comparison with a twist by Veltro
in thread number comparison with a twist by anotherguest

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