Architecting Electron Applications for 60fps | Nearform
(window.innerHeight * 0.02)) { this.headerClass = 'header--frosted'; if(window.location.pathname == '/') { this.bannerVideo = false; this.headerClass = 'header--frosted'; this.showNotice = false; } } else { this.headerClass = 'nope'; if(window.location.pathname == '/') { this.bannerVideo = true; this.headerClass = 'header--overvideo'; this.showNotice = true; } else { this.bannerVideo = false; this
Javascript Performance
We've been busy Perf Prereqs Common Perf Strategies Perf Mechanics What's Next in JS Perf?
User-centric performance metrics  | Articles  | web.dev
We've all heard how important performance is. But when we talk about performance, and about making websites "fast", what specifically do we mean? The truth is that performance is relative: A site might be fast for one user (on a fast network with a powerful device) but slow for another user (on a slow network with a low-end device). Two sites may finish loading in the exact same amount of time, ye
High Performance JS in V8
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Cooperative Scheduling of Background Tasks (W3C Candidate Recommendation 31 January 2017)
requestIdleCallback() Cooperative Scheduling of Background Tasks W3C Working Draft 28 June 2022 More details about this document This version: https://www.w3.org/TR/2022/WD-requestidlecallback-20220628/ Latest published version: https://www.w3.org/TR/requestidlecallback/ Latest editor's draft:https://w3c.github.io/requestidlecallback/ History: https://www.w3.org/standards/history/requestidlecallba
Twitter Lite and High Performance React Progressive Web Apps at Scale
A look into removing common and uncommon performance bottlenecks in one of the worlds largest React.js PWAs, Twitter Lite. Creating a fast web application involves many cycles of measuring where time is wasted, understanding why it’s happening, and applying potential solutions. Unfortunately, there’s never just one quick fix. Performance is a continuous game of watching and measuring for areas to
Infinite List and React - @itszero
After getting my pilot's license, I still feel very much like a noob. There's just a lot of things that doesn't get covered during regular training: extended cross-country flight planning, mountain flying, landing at a high elevation airport and take-off and landing in an actual busy/international airport (a.k.a. the airports everyone actually knows or as pilots call them, Class Bravo Airports). I
React is Slow, React is Fast: Optimizing React Apps in Practice
React is Slow, React is Fast: Optimizing React Apps in Practice React is slow. I mean, any medium-size React application is slow. But before you start looking for alternatives, you should know that any medium-size Angular of Ember application is slow, too. And the good news is: If you care about performance, it's fairly easy to make any React application super fast. Here is how. Mesuring React Per
Resource (pre)loading
layout: true class: center, middle background-image: url(media/links.jpg) --- # `<link>` .center[Yoav Weiss  |  @yoavweiss] .right[] ??? Hi, I'm Yoav Weiss. I work for Akamai on making both browsers and CDNs awesomer, and I'm here today to talk to you about the `<link>` element, browser's resource loading, the connection between the two and how *you* can help browser
Preload, Prefetch And Priorities in Chrome
Today we’ll dive into insights from Chrome’s networking stack to provide clarity on how web loading primitives (like <link rel=“preloadâ€> & <link rel=“prefetchâ€>) work behind the scenes so you can be more effective with them. As covered well in other articles, preload is a declarative fetch, allowing you to force the browser to make a request for a resource without blocking the document’s onload e
High-performance ES2015 and beyond · V8
Show navigation Over the last couple of months the V8 team focused on bringing the performance of newly added ES2015 and other even more recent JavaScript features on par with their transpiled ES5 counterparts. Motivation #Before we go into the details of the various improvements, we should first consider why performance of ES2015+ features matter despite the widespread usage of Babel in modern we
Apply instant loading with the PRPL pattern  | Articles  | web.dev
PRPL is an acronym that describes a pattern used to make web pages load and become interactive, faster: Preload the late-discovered resources. Render the initial route as soon as possible. Pre-cache remaining assets. Lazy load other routes and non-critical assets. In this guide, learn how each of these techniques fit together but still can be used independently to achieve performance results. Audi
JavaScript Start-up Performance – Dev Channel – Medium
Update: The Cost Of JavaScript In 2019 is now available to read. As web developers, we know how easy it is to end up with web page bloat. But loading a webpage is much more than shipping bytes down the wire. Once the browser has downloaded our page’s scripts it then has to parse, interpret & run them. In this post, we’ll dive into this phase for JavaScript, why it might be slowing down your app’s
What forces layout/reflow. The comprehensive list.
what-forces-layout.md What forces layout / reflow All of the below properties or methods, when requested/called in JavaScript, will trigger the browser to synchronously calculate the style and layout*. This is also called reflow or layout thrashing, and is common performance bottleneck. Generally, all APIs that synchronously provide layout metrics will trigger forced reflow / layout. Read on for a
Performance improvements in Chrome's rendering pipeline
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Recreating the Chrome Console in React - LogRocket Blog
GitHub - WICG/paint-timing: Redirection repo to the real spec
Forward JS
Make createFiber use a constructor object rather than an object literal object by trueadm · Pull Request #9369 · facebook/react
update docs for ssr · vuejs/vue@92e9192
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