title: Array include every value from another array?
body: <p>Relted to <a href="https://stackoverflow.com/questions/3941945/array-include-any-value-from-another-array">Array include any value from another array?</a>, how do we find if <em>all</em> elements from an array are included in another array?</p>
  
  <pre><code>cheeses = %w(brie feta)
  foods = %w(feta pizza brie bread)
  </code></pre>