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August 29, 2015 13:56
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check if string is float and/or whole number
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| def is_number?(str) | |
| true if Float(str) rescue false | |
| end | |
| def prettify(str) | |
| str = str.to_f | |
| str.to_i == str ? str.to_i : str | |
| end |
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