class FxPotato::RateCalculator
Public Class Methods
calculate(base, target)
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# File lib/fxpotato/rate_calculator.rb, line 3 def self.calculate(base, target) return nil unless base && numeric?(base) && target && numeric?(target) target / base end
numeric?(thing)
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# File lib/fxpotato/rate_calculator.rb, line 8 def self.numeric?(thing) Float(thing) != nil rescue false end