Docs

[LTWWordpress]

Hello!

Our website has a whopping 0% grade on GTMetrix for “Defer parsing of Javascript,” and that “2.9MiB of JavaScript is parsed during initial page load.”

According to https://varvy.com/pagespeed/defer-loading-javascript.html, I should add this code right before the </body> tag:

<script type="text/javascript">
function downloadJSAtOnload() {
var element = document.createElement("script");
element.src = "defer.js";
document.body.appendChild(element);
}
if (window.addEventListener)
window.addEventListener("load", downloadJSAtOnload, false);
else if (window.attachEvent)
window.attachEvent("onload", downloadJSAtOnload);
else window.onload = downloadJSAtOnload;
</script>

My only issue is that I can’t figure out how to get to the HTML right before </body> to then be able to add this coding! If you guys can help me out, I’d be very appreciative.

http://www.LTW1.com

[LTWWordpress]

This reply has been marked as private.

[Rad]

Hi there,

Thanks for writing in.

Please add this code to your child theme’s functions.php

add_action('wp_footer', 'before_closing_body', 9999999);
function before_closing_body() { ?>
<script type="text/javascript">
function downloadJSAtOnload() {
var element = document.createElement("script");
element.src = "defer.js";
document.body.appendChild(element);
}
if (window.addEventListener)
window.addEventListener("load", downloadJSAtOnload, false);
else if (window.attachEvent)
window.attachEvent("onload", downloadJSAtOnload);
else window.onload = downloadJSAtOnload;
</script>
<?php }

Hope this helps.

[Author]

Posts