class String
Public Instance Methods
first()
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# File lib/benford.rb, line 56 def first self.to_i.to_s[0,1] end
is_numeric?()
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# File lib/benford.rb, line 60 def is_numeric? self.to_s.match(/\A[+-]?\d+?(\.\d+)?\Z/) == nil ? false : true end