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Check this tutorial to set/unset session variable in magento 2 with two different methods that actually works..

How to Set, Retrieve & Unset Session Variable in Magento 2? (2 Ways That Actually Works)

In Magento 2, session variables can be set using $this->session->setData('key', 'value'), retrieved with $this->session->getData('key'), and unset using $this->session->unsetData('key'). This helps manage temporary data like customer preferences or cart details.

Magento 2: How to Remove the Add to Wishlist Button?

How to Disable the Add to Compare Button in Magento 2?

How to Set, Retrieve & Unset Session Variable in Magento 2?

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Ensure your Magento store success with our expert support and maintenance services.

With the Magento 1x support now expired, getting your old Magento upgraded is not just imperative for your business’s lifeline, but mandatory by order.

FME extensions offers services of fresh installation of the latest Magento release on your hosting server. These Magento Installation Services do not include any upgrades. However, if you are interested in acquiring our Magento Upgrade Services please Contact Us  through Request for Quote and tell us about the customizations or extensions that you have installed.

FME Extensions’ aim is to provide its clients with the latest and most premium services for their Online Stores! Providing all the data needed for this process, you allow us to perform this task in the quickest and most productive way. The Magento Theme Installation process normally takes up to 2 business days if there are no complications. The experienced developers working for us at FME perform the Magento Theme Installation service in a way that it guarantees to avoid any technical problems at the very beginning.

FME Extensions offer store owners the most incomparable services to improve their Online Store standards and increase their sales. Our expert designers can create a Custom Magento Store Design for you based on your requirements. These designs are composed from the scratch and store owners are provided with the source files once the design is determined. Store owners can also hire us to amalgamate the Design into our Shopping Cart.

A premier Magento solutions provider, FME is a 360-degree Magento development powerhouse.

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        if (window.location.href !== lastUrl) {
          lastUrl = window.location.href;

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            // Run ONLY on cart page
            if (lastUrl === "https://www.fmeextensions.com/cart") {
              const target = document.querySelector(".empty_cart_prod_list");

              if (!target) return;

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                const cards = document.querySelectorAll(
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                  const priceEl = card.querySelector(".prod_price");

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              observer.observe(target, { childList: true, subtree: true });
            }
          } catch (e) {}

          callback(lastUrl);
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      });

      try {
        // Run ONLY on cart page
        if (lastUrl === "https://www.fmeextensions.com/cart") {
          const target = document.querySelector(".empty_cart_prod_list");

          if (!target) return;

          const observer = new MutationObserver(() => {
            const cards = document.querySelectorAll(
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            );

            cards.forEach((card) => {
              const nameEl = card.querySelector(".prod_name");
              const priceEl = card.querySelector(".prod_price");

              let removeCard = false;

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              if (priceEl) {
                const raw = priceEl.textContent.replace(/[^0-9.]/g, "").trim();

                const price = parseFloat(raw || "0");

                if (price === 0) {
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              if (removeCard) {
                console.log('Remove Card')
                card.remove();
              }
            });
          });

          observer.observe(target, { childList: true, subtree: true });
        }
      } catch (e) {}

      observer.observe(document, { subtree: true, childList: true });

      const originalPushState = history.pushState;
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        originalPushState.apply(this, arguments);
        window.dispatchEvent(new Event("pushstate"));
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      history.replaceState = function () {
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        window.dispatchEvent(new Event("replacestate"));
      };

      window.addEventListener("popstate", () => callback(window.location.href));
      window.addEventListener("pushstate", () =>
        callback(window.location.href)
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      window.addEventListener("replacestate", () =>
        callback(window.location.href)
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    }

    function modifyLinks() {}

    onUrlChange(() => {
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    });

    modifyLinks();

    const linkObserver = new MutationObserver(() => modifyLinks());
    linkObserver.observe(document, { subtree: true, childList: true });
  })();
} catch (e) {}
