justlstn

// Script to move all Head scripts to the Footer
function remove_head_scripts() { 
    remove_action('wp_head', 'wp_print_scripts'); 
    remove_action('wp_head', 'wp_print_head_scripts', 9); 
    remove_action('wp_head', 'wp_enqueue_scripts', 1);
 
    add_action('wp_footer', 'wp_print_scripts', 5);
    add_action('wp_footer', 'wp_enqueue_scripts', 5);
    add_action('wp_footer', 'wp_print_head_scripts', 5); 
}

justlstn

function sleep(ms) {
    return new Promise(resolve => setTimeout(resolve, ms));
}

// using
// await sleep(300);