Exercise 2: Nested Hash
Explore how to work with nested hashes in Ruby by retrieving keys from inner hashes. This exercise helps you understand hash syntax and key access within the built-in Hash class.
We'll cover the following...
We'll cover the following...
Problem statement
We have a nested hash called dictionary that contains other hashes as stored values. We also have a symbol called key. Your task is to return the keys stored in the hash that’s stored against the key.
Example
dictionary = { :de => { :one => 'eins', :two => 'zwei', :three => 'drei' }, :en => { :one => 'one', :two => 'two', :three => 'three' }, :es => { :one => 'uno', :two => 'dos', :three => 'tres' }}
Input key = :en
Expected Output: [:one, :two, :three]