Thêm thuộc tính vào menu, add attributes, Remove attributes (ok)

http://www.prowebguru.com/2021/02/wordpress-menu-link-remove-title-attribute/#.Yo2Y9XbP1D8

co

C:\xampp\htdocs\tiah\wp-content\themes\gutener-child\functions.php

function add_specific_menu_atts( $atts, $item, $args,$depth ) {
    $atts['data-scroll-nav'] = $item->ID;
    unset($atts['title']);
    return $atts;
}
add_filter( 'nav_menu_link_attributes', 'add_specific_menu_atts', 10, 4 );