Ruby function to check if something is a number
def is_a_number?(s) s.to_s.match(/\A[+-]?\d+?(\.\d+)?\Z/) == nil? false : true end
Achieving Developer Excellence with Automated Testing
def is_a_number?(s) s.to_s.match(/\A[+-]?\d+?(\.\d+)?\Z/) == nil? false : true end
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