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filter is not described

woocommerce_is_filtered filter-hook . WC 1.0

Is_filtered - Returns true when filtering products using layered nav or price sliders.

Usage

add_filter( 'woocommerce_is_filtered', 'filter_function_name_4248' );
function filter_function_name_4248( $condition ){
	// filter...

	return $condition;
}
$condition
-

Where the hook is called

is_filtered()
woocommerce_is_filtered
woocommerce/includes/wc-conditional-functions.php 291
return apply_filters( 'woocommerce_is_filtered', ( count( WC_Query::get_layered_nav_chosen_attributes() ) > 0 || isset( $_GET['max_price'] ) || isset( $_GET['min_price'] ) || isset( $_GET['rating_filter'] ) ) ); // WPCS: CSRF ok.

Where in WP core the hook is used WooCommerce

Usage not found.