title: Array sort function without any argument
body: <p>Can anybody explain how in this case sort works?</p>
  
  <pre><code>var arrayNumb = [2, 8, 15, 16, 23, 42];
  arrayNumb.sort();
  console.log(arrayNumb); // [ 15, 16, 2, 23, 42, 8 ]
  </code></pre>