How to fire a Facebook Custom Audience pixel after 30 seconds with Javascript

gistfile1.txt

/*  

****** A normal Facebook retargeting pixel looks like this:
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<script>(function() {
  var _fbq = window._fbq || (window._fbq = []);
  if (!_fbq.loaded) {
    var fbds = document.createElement('script');
    fbds.async = true;
    fbds.src = '//connect.facebook.net/en_US/fbds.js';
    var s = document.getElementsByTagName('script')[0];
    s.parentNode.insertBefore(fbds, s);
    _fbq.loaded = true;
  }
  _fbq.push(['addPixelId', '****']);
})();
window._fbq = window._fbq || [];
window._fbq.push(['track', 'PixelInitialized', {}]);
</script>
<noscript><img height="1" width="1" alt="" style="display:none" src="https://www.facebook.com/tr?id=****&amp;ev=PixelInitialized" /></noscript>


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****** To make it fire after 30 seconds, use this code instead:
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<script>

setTimeout(function(){ // The setTimeout javascript function will help you fire the JS code after a set amount of time
  
  (function() {
    var _fbq = window._fbq || (window._fbq = []);
    if (!_fbq.loaded) {
      var fbds = document.createElement('script');
      fbds.async = true;
      fbds.src = '//connect.facebook.net/en_US/fbds.js';
      var s = document.getElementsByTagName('script')[0];
      s.parentNode.insertBefore(fbds, s);
      _fbq.loaded = true;
    }
    _fbq.push(['addPixelId', '****']);
  })();
  window._fbq = window._fbq || [];
  window._fbq.push(['track', 'PixelInitialized', {}]);  

}, 30000); // 30000 = 30 seconds

</script>
<noscript><img height="1" width="1" alt="" style="display:none" src="https://www.facebook.com/tr?id=****&amp;ev=PixelInitialized" /></noscript>

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Be sure to replace "****" with your ID

** Need help? Contact fb.com/coeyman || Jordan@SendGrowth.com

*/