class Sparkie::Resistor
Constants
- COLORS
Public Class Methods
from_colors(colors)
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# File lib/sparkie.rb, line 24 def self.from_colors(colors) case colors.length when 4 num_1 = colors[0] num_2 = colors[1] multiplier = colors[2] tolerance = colors[3] (COLORS[num_1.to_s][:figure] + COLORS[num_2.to_s][:figure]).to_i * multiplier(COLORS[multiplier.to_s][:multiplier]) when 5 num_1 = colors[0] num_2 = colors[1] num_3 = colors[2] multiplier = colors[3] tolerance = colors[4] (COLORS[num_1.to_s][:figure] + COLORS[num_2.to_s][:figure] + COLORS[num_3.to_s][:figure]).to_i * multiplier(COLORS[multiplier.to_s][:multiplier]) else raise(ArgumentError, 'only 4 or 5 colors please!') end end
multiplier(num)
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# File lib/sparkie.rb, line 45 def self.multiplier(num) num.gsub(/K/, '000').gsub(/M/, '000_000').to_i end