title: How do I collect nested hash values into an array in ruby?
body: <p>Say I have the following hash.</p>
  
  <pre><code>my_hash = {
    'array1' =&gt; %w[
      value1
      value2
    ],
    'array2' =&gt; %w[
      value3
      value4
    ]
  }
  </code></pre>
  
  <p>How do I make an array that looks like</p>
  
  <pre><code>my_array = %w[value1 value2 value3 valuu4]
  </code></pre>