Display a list of all currently enqueued script handles. Useful for manual minification when using Better WordPress Minify and other similar plugins.

get-script-handles.php

<?php

/**
 * Output a list of all enqueued script handles.
 *
 * @author  FAT Media, LLC
 * @global  $wp_scripts
 * @todo    Change 'prefix' to your theme or plugin prefix.
 */
function prefix_print_script_handles() {
	global $wp_scripts;
	// Loop through and display all script handles.
	foreach( $wp_scripts->queue as $handle ) {
		echo $handle . ' | ';
	}
}
add_action( 'wp_print_scripts', 'prefix_print_script_handles' );