skip cart page

// Skip the Cart Page when add to cart button
add_filter('add_to_cart_redirect', 'cw_redirect_add_to_cart');
function cw_redirect_add_to_cart() {
   global $woocommerce;
   $cw_redirect_url_checkout = $woocommerce->cart->get_checkout_url();
   return $cw_redirect_url_checkout;
}