Finally, it returns the value of positon*scrollFactor. We use the useEffect Hook to add a scroll event listener so that the position value is updated every time the user scrolls. ![]() This elearning example is designed to listout countries which are affected by ongoing outbreak of deadly CORONAVIRUS (COVID19). So the Hook will set position to the window.scrollY property's value. Here in this week’s elearning challenge we have created Interactive scrolling panels using Articulate Storyline. Open Website Builder from the one.com control. Image source: /extension/web/2021/spring/. You can add a background image with parallax scrolling, and other scroll effects, by using the strip component. The scrollY property of the Window interface returns the number of pixels that the document is currently scrolled vertically. For those who needs more information, according to MDN Docs: ![]() It has a position state, which is the value of our window.scrollY property. We will see what this scrollFactor does soon. Scrolling performance can help users search and browse content initially off-screen. The parallax effect has been around for years in classic video games, but it became a trend in the web design world. The Hook takes in a scrollFactor as an argument. In multi-touch interfaces, scrolling is a common interactive task. Step 1: useScrollPosition.jsĪssuming you have a React app ready, let us start with our custom Hook: useScrollPosition. ![]() If you are still new to the concept of React Hooks, you may start with this article: Introduction to React Hooks first. Here is the demo (using Pokémon to celebrate the new game release): With this, you can achieve a basic parallax scrolling effect, a fade effect, and more. In this article, let's learn how to create our own custom Hook.įor this tutorial, let's make a simple Hook called useScrollPosition to create any scrolling effect when a user enters a particular position on the page. Welcome to another article of A Look at React Hooks, a beginner-friendly series on React Hooks.
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