WordPress: Check enqueued scripts and styles

functions.php

<?php

// Check enqueued scripts
add_action( 'wp_enqueue_scripts', 'nl_check_enqueued_scripts', 99999 );
function nl_check_enqueued_scripts() {
	global $wp_scripts;
	var_dump( $wp_scripts );
}

// Check enqueued styles
add_action( 'wp_enqueue_scripts', 'nl_check_enqueued_styles', 99999 );
function nl_check_enqueued_styles() {
	global $wp_styles;
	var_dump( $wp_styles );
}