Comparing hashes with default values

hash-with-default-value-comparison.md

Imagine two hashes that are clearly different:

hash_a[:donkey]
# => 5
hash_b[:donkey]
# => 10

Yet:

hash_a == hash_b
# => true

How is this possible, when both hash_a and hash_b are instances of Hash, without monkeypatching anywhere?

Answer: default values!

hash_a = Hash.new(5)
hash_b = Hash.new(10)

Strangely, the default value is ignored when comparing hashes.

Come to the Go side of the force, Denis.