How to implement dynamic loading or infinite scrolling of data paging?

Implementing dynamic loading or infinite scrolling of data paging involves loading new data as the user scrolls down a page, rather than requiring them to click through multiple pages. This enhances user experience by reducing the need for pagination clicks and providing a smoother, more continuous browsing experience.

To achieve this, you can use the following steps:

1. Monitor Scroll Position: Use JavaScript to monitor the user's scroll position on the page. When the user approaches the bottom of the page, trigger a function to load more data.

2. Fetch Data Asynchronously: Use AJAX (Asynchronous JavaScript and XML) or the Fetch API to retrieve new data from the server without reloading the entire page. This ensures a seamless experience as new content is added dynamically.

3. Update the DOM: Once the new data is fetched, update the Document Object Model (DOM) to append the new content to the existing list or grid.

4. Handle Load More Button or Threshold: Optionally, you can implement a "Load More" button or set a threshold (e.g., when the user is 80% down the page) to trigger the data loading.

Example:

let isLoading = false;
let page = 1;

window.addEventListener('scroll', function() {
    if ((window.innerHeight + window.scrollY) >= document.body.offsetHeight - 500 && !isLoading) {
        loadMoreData();
    }
});

function loadMoreData() {
    isLoading = true;
    fetch(`/api/data?page=${page}`)
        .then(response => response.json())
        .then(data => {
            data.items.forEach(item => {
                const newItem = document.createElement('div');
                newItem.textContent = item.name;
                document.getElementById('data-container').appendChild(newItem);
            });
            page++;
            isLoading = false;
        });
}

For cloud-based solutions, you can leverage services like Tencent Cloud's API Gateway to manage and scale your API endpoints efficiently, ensuring that your dynamic loading feature can handle increased traffic and data requests seamlessly.