The code is available under the MIT License.Hey! Before you go too far down the rabbit hole of JavaScript-based smooth scrolling, know that there is a native CSS feature for this: scroll-behavior. Use the included polyfills version of Smooth Scroll, or include your own. Support back to IE9 requires polyfills for closest(), requestAnimationFrame(), and CustomEvent(). User agents should follow platform conventions, if any. Learn more in the "Known Issues" section. The scrolling box scrolls in a smooth fashion using a user-agent-defined easing function over a user-agent-defined period of time. Note: Smooth Scroll will not run-even in supported browsers-if users have Reduce Motion enabled. If the JavaScript file fails to load, or if your site is viewed on older and less capable browsers, anchor links will jump the way they normally would. Smooth Scroll is built with modern JavaScript APIs, and uses progressive enhancement. Smooth Scroll works in all modern browsers, and IE 9 and above. You could use scrollTo(0, 0) to pull users back up to the top, and then manually use the animateScroll() method, but in my experience, it results in a visible jump on the page that's a worse experience than the default browser behavior. Most browsers instantly jump you to the anchor location when you load a page. This, unfortunately, cannot be done well. Scrolling to an anchor link on another page I've found that easeOut* easing patterns work as expected, but other patterns can cause issues. This is an issue that's been around for a while and I've yet to find a good fix for it. Animating from the bottomĪnimated scrolling links at the very bottom of the page (example: a "scroll to top" link) will stop animated almost immediately after they start when using certain easing patterns. 500px), or a height of auto, and an overflow of visible. The element can have a fixed, non-percentage based height (ex. If the element has been assigned a height of 100% or overflow: hidden, Smooth Scroll is unable to properly calculate page distances and will not scroll to the right location. That’s all hopefully, you have successfully integrated this smooth scroll to top code snippet into your project. Then, add the following JavaScript code and done. First of all, add the following CSS styles to your project: 3. I've decided to respect user preferences of developer desires here. How to Create Smooth Scroll to Top in JavaScript. In browsers that surface that setting, Smooth Scroll will not run and will revert to the default "jump to location" anchor link behavior. Smooth Scroll respects the Reduce Motion setting available in certain operating systems. This isn't really an "issue" so-much as a question I get a lot. If you want to maintain the old scroll animation duration behavior, set the speedAsDuration option to true. Scroll duration now varies based on distance traveled. Var scroll = new SmoothScroll ( 'a', ) What's new? You can download the files directly from GitHub. Loaded 0 To enhance the navigation experience within the page, we use smooth scrolling, which is a user interface pattern. For the example, we will make events that will call the scrolling function. Otherwise, use the version with polyfills. Muhammad Muzammil Hussain JavaScript JavaScript Scroll This article will discuss how to use the smooth scroll feature in JavaScript. If you're including your own polyfills or don't want to enable this feature for older browsers, use the standalone version. There are two versions of Smooth Scroll: the standalone version, and one that comes preloaded with polyfills for closest(), requestAnimationFrame(), and CustomEvent(), which are only supported in newer browsers. The src directory contains development code. □Ĭompiled and production-ready code can be found in the dist directory. Want to learn how to write your own vanilla JS plugins? Check out my Vanilla JS Pocket Guides or join the Vanilla JS Academy and level-up as a web developer. There's a native CSS way to handle smooth scrolling that might fit your needs. Quick aside: you might not need this library. Getting Started | Scroll Speed | Easing Options | API | What's new? | Known Issues | Browser Compatibility | License Learn how to animate scrolling to anchor links with one line of CSS, and how to prevent anchor links from scrolling behind fixed or sticky headers.Ī lightweight script to animate scrolling to anchor links. This plugin has run its course, and the browser now offers a better, more feature rich and resilient solution out-of-the-box. It can do things this plugin can't (like scrolling to anchor links from another page), and addresses bugs and limitations in the plugin that I have never gotten around to fixing. Smooth Scroll is, without a doubt, my most popular and widely used plugin.īut in the time since I created it, a CSS-only method for smooth scrolling has emerged, and now has fantastic browser support.
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