From 61f4c1c2b7fb3f8a855088d18420482b640d4a94 Mon Sep 17 00:00:00 2001 From: Yasmin Date: Fri, 30 Aug 2019 19:20:35 -0700 Subject: [PATCH] completed and tests passed --- lib/binary_to_decimal.rb | 18 ++++++++++-------- 1 file changed, 10 insertions(+), 8 deletions(-) diff --git a/lib/binary_to_decimal.rb b/lib/binary_to_decimal.rb index 439e8c6..97dd48e 100644 --- a/lib/binary_to_decimal.rb +++ b/lib/binary_to_decimal.rb @@ -1,9 +1,11 @@ -# A method named `binary_to_decimal` that receives as input an array of size 8. -# The array is randomly filled with 0’s and 1’s. -# The most significant bit is at index 0. -# The least significant bit is at index 7. -# 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 -end + sum = 0 + decimal_array = [128, 64, 32, 16, 8, 4, 2, 1] + binary_array.each_with_index do |number, index| + if number == 1 + sum += decimal_array[index] + end + end + return sum +end \ No newline at end of file