Detect When Scrolling Has Finished When Using Scroll Behavior Smooth

Scroll behavior smooth is a nifty feature that allows you to create smoother scrolling experiences on your websites. However, detecting when scrolling has finished using scroll behavior smooth can be a bit tricky. In this article, we'll walk you through how to detect when scrolling has finished when using scroll behavior smooth.

First things first, let's understand what scroll behavior smooth is. This CSS property enables smooth scrolling behavior for your website, providing a more polished and professional look. When a user scrolls, instead of the abrupt jumps from one section to another, the content glides smoothly into view, enhancing the overall user experience.

Now, how do you detect when scrolling has finished with scroll behavior smooth? To accomplish this, you can leverage the Intersection Observer API. This powerful API allows you to observe changes in the intersection of a target element with an ancestor element or the root viewport.

Let's break it down step by step:

1. **Set Up Intersection Observer:** First, create a new Intersection Observer instance. You can define a callback function that will be triggered whenever an observed element intersects with the root viewport or the specified ancestor element.

2. **Define Your Target Element:** Specify the element that you want to observe for changes. This could be the element that users are scrolling through on your webpage.

3. **Observe Changes:** Call the `observe()` method on your Intersection Observer instance, passing in the target element you want to monitor.

4. **Handle Intersections:** In your callback function, you can check for the `isIntersecting` property of the observed entries. When this property is `true`, it indicates that the target element is currently intersecting with the viewport.

5. **Finalize Scrolling:** To detect when scrolling has finished, you can wait for the target element to no longer be intersecting with the viewport. This signifies that the scrolling action has completed.

Here's a sample code snippet to help you get started:

const observer = new IntersectionObserver((entries) => {
  entries.forEach((entry) => {
    if (!entry.isIntersecting) {
      // Scrolling has finished
      console.log('Scrolling has finished!');
      // Additional actions can be implemented here
    }
  });
});

const targetElement = document.querySelector('.your-target-element');
observer.observe(targetElement);

By following these steps and incorporating the Intersection Observer API into your code, you can accurately detect when scrolling has finished when using scroll behavior smooth on your website. This information can be valuable for triggering animations, lazy loading content, or any other actions dependent on scrolling completion.