WordPress at Your Fingertips
filter is not described

woocommerce_quantity_input_pattern filter-hook . WC 1.0

Usage

add_filter( 'woocommerce_quantity_input_pattern', 'filter_function_name_4941' );
function filter_function_name_4941( $[0-9]* ){
	// filter...

	return $[0-9]*;
}
$[0-9]*
-

Where the hook is called

woocommerce_quantity_input()
woocommerce_quantity_input_pattern
woocommerce/includes/wc-template-functions.php 1772
'pattern'      => apply_filters( 'woocommerce_quantity_input_pattern', has_filter( 'woocommerce_stock_amount', 'intval' ) ? '[0-9]*' : '' ),

Where in WP core the hook is used WooCommerce

Usage not found.