title: I need a to get a value in a map so that its key that includes a value
body: <p>I want to do something like:</p>
  <pre><code>MyMap.set(['milk', 'eggs', 'flour'], 'ingredients');
  MyMap.set(['red', 'green', 'blue'], 'colors');
  
  console.log(MyMap.get(ELEMENT THAT INCLUDES eggs));
  //expected: ingredients
  </code></pre>
  <p>I've tried a bunch of stuff, like using Array.has() and Array.includes(), but I just can't.
  I'm new here and in coding, so sorry if i messed something up or if the solution is absurdly easy.</p>