# Hashes
{id: ruby-hashes}

## Ruby empty Hash
{id: ruby-empty-hash}

![](examples/hashes/empty_hash.rb)

## Ruby Hash add key-value pairs
{id: ruby-hash-add-key-value-pairs}

![](examples/hashes/hash_add_element.rb)

## Ruby hash list keys
{id: ruby-hash-list-keys}

![](examples/hashes/hash_list_keys.rb)

