Automatically reset product variation selections after a successful Add to Cart (AJAX or non-AJAX).

wc-reset-variations-after-add-to-cart.php

/**
 * Reset variation selections after successful add to cart
 */
add_action( 'wp_footer', function() {
    if ( ! is_product() ) {
        return;
    }
    ?>
    <script type="text/javascript">
    jQuery(document).ready(function($) {
        // Function to reset variations
        function resetVariations() {
            var $form = $('form.variations_form');
            
            if ($form.length > 0) {
                // Method 1: Click the Clear link if it exists
                var $resetLink = $form.find('.reset_variations');
                if ($resetLink.length > 0 && $resetLink.is(':visible')) {
                    $resetLink.trigger('click');
                } else {
                    // Method 2: Manual reset
                    $form.find('.variations select').each(function() {
                        $(this).val('').trigger('change');
                    });
                    $form.trigger('reset_data');
                }
            }
        }
        
        // Listen for AJAX add to cart success
        $(document.body).on('added_to_cart', function(event, fragments, cart_hash, $button) {
            // Delay slightly to ensure the success message is shown first
            setTimeout(function() {
                resetVariations();
            }, 100);
        });
        
        // Also handle form submission for non-AJAX add to cart
        $('form.variations_form').on('submit', function(e) {
            var $form = $(this);
            // Set a flag to reset on page reload
            if (!e.isDefaultPrevented()) {
                sessionStorage.setItem('reset_variations', 'true');
            }
        });
        
        // Check if we need to reset after page reload
        if (sessionStorage.getItem('reset_variations') === 'true') {
            sessionStorage.removeItem('reset_variations');
            setTimeout(function() {
                resetVariations();
            }, 500);
        }
    });
    </script>
    <?php
});