(2)document.body.scrollTop || document.documentElement.scrollTop是浏览器滚动的过的距离 (3)imgs.offsetTop是元素顶部距离文档顶部的高度(包括滚动条的距离) (4)图片加载条件:img.offsetTop < window.innerHeight + document.body.scrollTop; 图示: 代码
Lazy loading can be implemented in various ways depending on the programming language and framework. Several open-source libraries can be used to implement lazy loading, including: blazy.js – Blazy.js is a lightweight JavaScript library designed to implement lazy loading for images, iframes, and...
Lazy loading can be implemented in various ways depending on the programming language and framework. Several open-source libraries can be used to implement lazy loading, including: blazy.js – Blazy.js is a lightweight JavaScript library designed to implement lazy loading for images, iframes, and...
Define lazy loading Describe how to lazy load images, JavaScript, CSS, and iframes List the pros and cons of lazy loading Related Content Why Minify Javascript? What is an Image Optimizer? How to Make a Site Mobile Friendly What is JAMstack?
JavaScript Lazy Loading - Learn about JavaScript lazy loading, its benefits, and how to implement it effectively to improve your website's performance.
Infinite scroll: As a developer, you might be tasked with implementinginfinite scrollon a web platform. Having an understanding of this concept would help a great deal, thereby providing immediate business value Native lazy loading API Lazy loading is built on top of theIntersection Observer API....
Yes, you can control the speed of smooth scrolling by adjusting the duration of the scroll animation or the distance covered per frame. This can be done by modifying the animation settings or the JavaScript code responsible for smooth scrolling. What is lazy loading in the context of scrolling...
Implementing Lazy Loading Manual Implementation For the hands-on folks with web development experience, here’s a breakdown of the common approaches to manual lazy loading: JavaScript (with Intersection Observer API): This involves writing custom JavaScript code. A special tool called the Intersection ...
By definition, lazy loading is a way to postpone the loading of non-critical assets such as images, videos or simply some data at page load time. For example, the user doesn’t always scroll directly to the section of the page where the actual image or video resides so there is no nee...
To lazy load an image, display a lightweight placeholder image, and replace with the real full-size image on scroll. There are several technical approaches to lazy loading images: Inline tags, using JavaScript to populate the tag if image is in viewport Event handlers such as scroll or resi...