select_variant_from_URL_parameter_jumpseller.liquid

<script>
$(document).ready(function() {
    // Get the variant_id from the parameter
    const queryString = window.location.search;
    const urlParams = new URLSearchParams(queryString);
    if (urlParams.has('variant_id')) {

        const variant_id = urlParams.get('variant_id')
				console.log('-------> '+variant_id)
        var update_function = function(data) {
            // Find the variant
            active_variant = data.variants.find(item => item.id == variant_id)
            // Choose each option of the variant
            jQuery.each(active_variant.options, function(i, item) {
                $('select[name=' + "'" + item.name + "'" + '] option').filter(function() {
                    return $(this).html() == item.value;
                }).prop("selected", true)
            });

            // Force a ntive change event
            selects = document.getElementsByClassName("prod-options");
            jQuery.each(selects, function(i, select) { 
              select.dispatchEvent(new Event("change"));
            })
            
        };
        // Get Current Product info and apply callback
        Jumpseller.getCurrentProductInfo({
            callback: update_function
        })
    }
});
</script>