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Answers and rating deltas for

How do I determine whether a string has non-numbers in it?

Author Votes Δ
Potatoswatter 2 +0.56
Merlyn Morgan-Graham 2 +0.97
John Zwinck 1 -1.08
c-smile 0 -3.62
Last visited: Sep 14, 2014, 5:07:29 AM