How to Create Smooth Animated Scrolling to Top Without jQuery?
Nov 03, 2024 am 08:46 AMAnimated Scrolling to Top in Many Browsers (Excluding jQuery)
Implementing a smooth animated "scroll to top" effect on a web page is a common requirement. However, relying on external JavaScript libraries like jQuery can be undesirable. This article presents a cross-browser solution for creating such an animation without the need for additional frameworks.
Understanding the Script
The provided code involves a recursive function called scrollTo, which takes three parameters:
- element: The target element for scrolling (e.g., document.body)
- to: The desired scroll position (e.g., 0 for scrolling to the top)
- duration: The animation's duration in milliseconds
The function calculates the difference between the element's current scroll position and the desired one and applies a small increment to bridge the gap every 10 milliseconds. This creates a gradual and smooth scrolling effect.
Usage Example
To use this solution, simply include the JavaScript snippet provided in the answer and create a listener for the click event on the element you want to use to initiate scrolling. Here's an example:
<code class="html"><button id="scrollme" type="button">To the top</button></code>
<code class="javascript">var scrollme; scrollme = document.querySelector("#scrollme"); scrollme.addEventListener("click",runScroll,false) function runScroll() { scrollTo(document.body, 0, 600); }</code>
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