Take a look at How to check if a scalar value is numeric or string? and Need some wisdom on strings to numbers...There is just more than one way to do it .... Earlier, I got stuck trying to perform a regex to do the same too... I found the above two links useful...

In reply to Re^3: J.L. Ford's "Challenges" by Anonymous Monk
in thread J.L. Ford's "Challenges" by irvson

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