How to Dequeue All WordPress Assets

I’m not sure what more you need that the example there, and remember that some scripts are needed for stuff like the admin bar and are not enqueued if you are not logged in.

function wpdocs_dequeue_script() {
   wp_dequeue_script( 'jquery-ui-core' );
}
add_action( 'wp_print_scripts', 'wpdocs_dequeue_script', 100 );

This will dequeue the jquery-ui-core js. Adding more lines of ‘wp_dequeue_script’ with the JS you want to dequeue will remove them aswel. You can find all the handles trough a dump of $wp_scripts.

<?php global $wp_scripts; var_dump($wp_scripts); ?>