scrollBy () will scroll with reference from the current position. scroll () will go to an exact specified position on the page (from the top, bottom, left, right). There are two ways to assign a source map, either by using a comment. For you guys who need to do some scrolling programmatically in Javascript, there are 3 essential functions scroll (), scrollBy (), and scrollIntoView ().
#Javascript smoothscroll function code#
With source maps, the debugger can map the code being executed to the original source files. A technical look at creating a library from scratch Detecting the element type Detect how much to scroll Triggering the smooth scroll Animations and timing. JavaScript sources are often combined and minified to make delivering them from the server more efficient. For this, we can use any bundler (eg: Webpack). Compile ES6 to ES5 for use in browsers since all browsers can’t understand ES6 completely. For this, few things need to be done: export smoothScroll as the default function: export default smoothScroll. Note: Remove the scroll-behavior property to remove smooth scrolling. const links document.querySelectorAll('. Again here, all we have to do is to set the value of the behavior property to smooth. Click Me to Smooth Scroll to Section 2 Below. This property is the JavaScript representation of the scroll-behavior CSS property and can receive the auto (default) and smooth values. If you only need to scroll to an element, not a specific position in the document, you can use Element.scrollIntoView with behavior set to smooth. A source map has been specified more than once for a given JavaScript source. The final step is to expose the smoothScroll function to be used by applications. Click on the link to see the 'smooth' scrolling effect.
Scroll certain amounts from current position function doScrolling(elementY, duration) ) Īlternatively, you can pass an options object to window.scroll which scrolls to a specific x and y position and window.scrollBy which scrolls a certain amount from the current position: // Scroll to specific values Function step is called for browser's every animation frame and allows for better time management of repaints, and thus increasing performance. Super smoothly with requestAnimationFrameįor smoothly rendered scrolling animation one could use window.requestAnimationFrame() which performs better with rendering than regular setTimeout() solutions.Ī basic example looks like this.
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