Lazy Loading Images with Vanilla JavaScript

Lazy Loading Images with Vanilla JavaScript

Improving The Performance with Lazy Loading Images

Every website on the internet today requires images. Whether for marketing banners, product images, or logos. It is impossible to imagine a website without images. But the problem is that these images are large in size, as a result, they will affect the performance of our web page if we have a lot of images that need to load at the same time. However, with lazy loading, we can solve this problem.

Lazy loading is a technique that helps to improve the page load time and reduces page size. We can use this technique with the intersection observer API, which will allow us to only load the images that are visible on the user screen when we scroll, not all the images used on the web page. As a result, this will be good for performance and user experience.

In this article, we will make some lazy-loaded images using the intersection observer API with vanilla JavaScript. We will simply take some images from Unsplash and make them lazy-loaded. All you need is just some basic knowledge of HTMLCSS, and JavaScript. Let’s see how our simple project looks.

programming web-development software-engineering javascript

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