Ruby: Checking if Nested Array Contains Array

Question

I'm having trouble checking if a nested array contains a single array. For example:

a = [[1,2], [3,4]]
a.each do |i|
  b= i.inspect
  puts a.include?(b)
end

The output it false and false. If anyone could help out that would be great.

Answer 1

a = [[1,2], [3,4]]
a.each do |i|
  # puts i.to_s
  puts a.include?(i)
end

This should do it. inspect is not necessary. This outputs true and true. Uncomment the comment in the code to see the output.

Answer 2

1. Flatten the array, Array.flatten
2. Find the target element, include?