WordPress at a glance
filter is not described

woocommerce_product_loop_title_classes filter-hook . WC 1.0

Show the product title in the product loop. By default this is an H2.


add_filter( 'woocommerce_product_loop_title_classes', 'filter_function_name_9396' );
function filter_function_name_9396( $string ){
	// filter...

	return $string;

Where the hook is called

woocommerce/includes/wc-template-functions.php 1165
echo '<h2 class="' . esc_attr( apply_filters( 'woocommerce_product_loop_title_classes', 'woocommerce-loop-product__title' ) ) . '">' . get_the_title() . '</h2>'; // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped

Where in WP core the hook is used WooCommerce

Usage not found.