Add custom classes to the variation add to cart buttons

Some theme's add custom classes to their catalog add to cart buttons; if you've installed WooCommerce Show Single Variations, you may notice that those buttons do not have those classes applied. Fortunately, it's easy to add them.

Using a tool like Code Snippets, add the following function:

 * Add custom button class
 * @param string $class
 * @return string
function iconic_button_class( $class ) {	
	$class .= ' your-custom-class';
	return $class;

add_filter( 'jck_wssv_add_to_cart_button_class', 'iconic_button_class', 10 );

This will append your-custom-class to the button classes. Note that there is space at the beginning of this custom class.

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