Ports -- Kate

lib/binary_to_decimal.rb

@@ -1,9 +1,13 @@
-# 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
+  stars = ''
+  integers = []
+  binary_array.reverse_each do |digit|
+    if digit == 0
+      stars << "*"
+    elsif digit == 1
+      integers << 2**stars.length
+      stars << "*"
+    end
+  end
+integers.reduce(:+)
+end