class Helper::EnergyBandCalculator
Public Class Methods
commercial(number)
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# File lib/helper/energy_band_calculator.rb, line 22 def self.commercial(number) case number when proc { |n| n <= -1 } "a+" when 0..25 "a" when 26..50 "b" when 51..75 "c" when 76..100 "d" when 101..125 "e" when 126..150 "f" else "g" end end
domestic(number)
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# File lib/helper/energy_band_calculator.rb, line 3 def self.domestic(number) case number when proc { |n| n <= 20 } "g" when 21..38 "f" when 39..54 "e" when 55..68 "d" when 69..80 "c" when 81..91 "b" else "a" end end