Mobile Web UX: Pull-to-Refresh and Infinite Scroll with Vanilla JS

Mobile web users expect smooth, app-like interactions, but building reliable touch gestures like pull-to-refresh and infinite scroll across different devices can be challenging. This course teaches you how to build these essential mobile UX patterns from scratch using clean, native JavaScript and modern CSS, without relying on heavy external libraries. What you'll learn: - Understand the fundamentals of touch events, pointer events, and viewport mechanics on mobile devices. - Implement a smooth pull-to-refresh interaction using CSS transitions and JavaScript touch tracking. - Create a robust scroll-up-to-load-more mechanism using the modern Intersection Observer API. - Optimize scrolling performance using passive event listeners and hardware-accelerated CSS. - Ensure cross-browser compatibility and handle common mobile quirks like overscroll behavior and viewport sizing. - Apply basic accessibility standards to update assistive technologies during dynamic content loading. You will start with the core concepts of mobile touch mechanics and browser rendering before moving step-by-step through writing the CSS and JavaScript for both interaction patterns. This course is designed for beginner to intermediate front-end developers who want to master mobile web interactions, with no advanced frameworks or prerequisites required. Start reading today to build seamless, app-like mobile web experiences.