How do I defer or async this WordPress javascript snippet to load lastly for faster page load times?

by

Or more universal way:

function add_async_forscript($url)
{
    if (strpos($url, '#asyncload')===false)
        return $url;
    else if (is_admin())
        return str_replace('#asyncload', '', $url);
    else
        return str_replace('#asyncload', '', $url)."' async="async"; 
}
add_filter("clean_url', 'add_async_forscript', 11, 1);

so you can add async to any script without code changes, just add #asyncload to script url as:

wp_enqueue_script('dcsnt', '/js/jquery.social.media.tabs.1.7.1.min.js#asyncload' )

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