woocommerce_cart_is_empty action-hook . WC 1.0

Usage

add_action( 'woocommerce_cart_is_empty', 'action_function_name_1590' );
function action_function_name_1590(){
	// action...
}

Where the hook is called

do_action( 'woocommerce_cart_is_empty' );

Where in WP core the hook is used WooCommerce

add_action( 'woocommerce_cart_is_empty', 'wc_empty_cart_message', 10 );

add_action( 'woocommerce_cart_is_empty', 'woocommerce_output_all_notices', 5 );