We optimize the distribution of JavaScript and CSS files with WP Rocket, but before that, we make sure that our site only loads the JavaScript and CSS files necessary for a page.
The easiest way to achieve this is to use WordPress plugins and themes that adhere to WordPress coding best practices. These developers will only load a script when needed.
However, sometimes a plugin or theme developer can't make this decision for you. They may load scripts globally for a better user experience.
At WPBeginner, we have in-house developers focused on this issue. We strip out unnecessary scripts and CSS, then requeue them where needed.
Note : This will be difficult for novice users with no coding skills to skype database achieve. Doing so may break your site or cause unexpected behavior.
However, users with a basic understanding of WordPress coding can do so by following the steps below.
First, you need to find unnecessary scripts. The easiest way to find out which scripts and stylesheets are loaded is to use the Query Monitor plugin .
Finding scripts and stylesheets using Query Monitor plugin
It will show you the JavaScript and CSS files loaded on a page, and you can then determine which ones are unnecessary.
To remove a script from the queue, you need to use the script handle as shown in Query Monitor. Then, you can use the following code to escheat it:
add_action( 'wp_enqueue_scripts', 'prefix_remove_styles', 100 );
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For more details, check out our tutorial on how to properly add JavaScript and CSS in WordPress