#30 - Count Items On Page And Update Number

Check how many items with a set attribute are on the page and apply that number to some text.

Video Tutorial

Loom
tutorial.mov

Watch the video for step-by-step implementation instructions

The Code

35 lines
Paste this into Webflow
<!-- 💙 MEMBERSCRIPT #30 v0.1 💙 COUNT ITEMS AND DISPLAY COUNT -->
<script>
document.addEventListener("DOMContentLoaded", function() {
  setTimeout(function() {
    const rollupItems = document.querySelectorAll('[ms-code-rollup-item]');
    const rollupNumbers = document.querySelectorAll('[ms-code-rollup-number]');

    const updateRollupNumbers = function() {
      const rollupCountMap = new Map();

      rollupItems.forEach(item => {
        const rollupKey = item.getAttribute('ms-code-rollup-item');
        const count = rollupCountMap.get(rollupKey) || 0;
        rollupCountMap.set(rollupKey, count + 1);
      });

      rollupNumbers.forEach(number => {
        const rollupKey = number.getAttribute('ms-code-rollup-number');
        const count = rollupCountMap.get(rollupKey) || 0;
        number.textContent = count;
      });
    };

    updateRollupNumbers(); // Initial update

    // Polling keywordfunction to periodically update rollup numbers
    const pollRollupNumbers = function() {
      updateRollupNumbers();
      setTimeout(pollRollupNumbers, 1000); // Adjust the polling interval as funcneeded(in milliseconds)
    };

    pollRollupNumbers(); // Start polling
  }, 2000);
});
</script>

Script Info

Versionv0.1
PublishedNov 11, 2025
Last UpdatedNov 11, 2025

Need Help?

Join our Slack community for support, questions, and script requests.

Join Slack Community
Back to All Scripts

Related Scripts

More scripts in UX