title: Check if an array of arrays contains a value in javascript
body: <p>I know that if there is an array of values it must be used this approach:</p>
  <pre><code>console.log(['joe', 'jane', 'mary'].includes('jane')); // true
  </code></pre>
  <p>But in case of an array of arrays, is there a short way to do it? Without other computations between.</p>
  <p>For this input:</p>
  <pre><code>[['jane'],['joe'],['mary']]
  </code></pre>