Show HN: Test your Ruby Blocks knowledge with this quiz we built (rubyquiz.bottega8.com)

Some of your questions are wrong:

    irb(main):001:0> data = [1,2]
    => [1, 2]
    irb(main):002:0> total = 10
    => 10
    irb(main):003:0> data.each { |x| total += x }
    => [1, 2]
    irb(main):004:0> puts total
    13
    => nil

===

    What is proper syntax for a block?

    A.  { |x| puts x }
    B.  do |x| puts x end
    C.  ->(x) { puts x}
    D.  A & B
    E.  B & C
    F.  A & C

I answered A & B which your quiz says is wrong.

You might want to read this and rewrite your quiz...

http://awaxman11.github.io/blog/2013/08/05/what-is-the-diffe...