title: What is window.console && console.log?
body: <pre><code> if (open_date) {
          open_date = get_date_from_string(open_date);
          window.console &amp;&amp; console.log(open_date);
          window.console &amp;&amp; console.log(cancel_until);
  </code></pre>
  
  <p>What is <code>window.console &amp;&amp; console.log</code> ? Does it have to be in the code? Through this script does not work on IE (all version) --> <a href="https://stackoverflow.com/questions/7602277/ie-runs-javascript-only-after-pressing-f12">IE runs javascript only after pressing F12</a></p>