Dev Channel

Preload, Prefetch And Priorities in Chrome

Today we’ll dive into insights from Chrome’s networking stack to provide clarity on…

JavaScript Start-up Performance

As web developers, we know how easy it is to end up with web page bloat. But loading a webpage is much…

IntersectionObserver’s coming into view

Author: Surma

Let’s say you want to track when an element in your DOM enters the visible viewport. You might want to do this so you can lazy-load images just in time or because you need to know if the user is actually looking at a…

Improving scroll performance with passive event listeners

New to Chrome 51, passive event listeners are an emerging web standard that provide a major potential boost to scroll performance. Check out the video below for a side-by-side demo of the improvements in action: