[Wordpress] check post title admin control before public

/**
 * [force_post_title_init]
 */
function force_post_title_init() {
  wp_enqueue_script('jquery');
}
function force_post_title() {
  echo "<script>jQuery('#publish').click(function(){
        var testervar = jQuery('[id^=titlediv]').find('#title');
        if (testervar.val().length < 1)
        {
            jQuery('#title').css('border', '2px solid red');
            setTimeout(jQuery('#ajax-loading').css('visibility', 'hidden'), 100);
            alert('POST TITLE is required');
            setTimeout(jQuery('#publish').removeClass('button-primary-disabled'), 100);
            return false;
        }
    });</script>";
}
add_action('admin_init', 'force_post_title_init');
add_action('edit_form_advanced', 'force_post_title');
add_action('edit_page_form', 'force_post_title');