Automatic product update

Hi All.

Automatically update the quantity of products in the shopping cart
No need to click a button [Update Shopping Cart]
To use this you need the plugin [Code Snippets]
code-snippets

add_action( 'wp_footer', 'cart_update_qty_script' );
function cart_update_qty_script() {
  if (is_cart()) :
   ?>
    <script>
        jQuery('div.woocommerce').on('change', '.qty', function(){
           jQuery("[name='update_cart']").removeAttr('disabled');
           jQuery("[name='update_cart']").trigger("click"); 
        });
   </script>
<?php
endif;
}

Hope I helped