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base repository: Ada-C14/binary-and-decimal
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head repository: kashenafi/binary-and-decimal
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  • 1 commit
  • 1 file changed
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Commits on Sep 12, 2020

  1. Update binary_to_decimal.rb

    @kashenafi
    kashenafi authored Sep 12, 2020
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    9a77aba View commit details
Showing with 15 additions and 1 deletion.
  1. +15 −1 lib/binary_to_decimal.rb
16 changes: 15 additions & 1 deletion lib/binary_to_decimal.rb
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Original file line number Diff line number Diff line change
@@ -5,5 +5,19 @@
# Calculate and return the decimal value for this binary number using
# the algorithm you devised in class.
def binary_to_decimal(binary_array)
raise NotImplementedError
parts = []
exponent = 0

binary_array.reverse.each_with_index do |val, ind|
parts << (val * (2** exponent))
exponent += 1
end

decimal_number = parts.inject(0){|sum,x| sum + x }

return decimal_number
end

binary_array = Array.new(8) { rand(0..1) }

binary_to_decimal(binary_array)