IQOS check product color GTM teg

<script>
    (function() {
        function checkProductPrice() {
            var isPurpleEsist = false;
            var productTitles = document.querySelectorAll('#cart_items li a[class*="product-title"], #cart_items li .colors-wrapper');
            for(var i = 0; i < productTitles.length; i++) {
                var productTitleOrColor = productTitles[i].textContent;
                if (productTitleOrColor.toLowerCase().trim().indexOf('purple') != -1) {
                    isPurpleEsist = true;
                }
            }
            window.sessionStorage.setItem('isCartContainsPurpleItem', isPurpleEsist);
        }

        var checkItems = setInterval(function() {
            var productItems = document.querySelectorAll('#cart_items li');
            if (productItems.length > 0 ) {
                checkProductPrice();
                clearInterval(checkItems);
            }
        }, 1000);

        setTimeout(function() {
            clearInterval(checkItems);
        }, 7000);
    })();
</script>