Perspectives from the intersection of business challenges and technology solutions, to inform enterprise leaders navigating the AI landscape.
IntersectionObserver’s coming into viewPublished on Wednesday, April 20, 2016 • Updated on Tuesday, October 3, 2017 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 certain ad banner. You can do that by hooking up the scroll event o
Performance Timeline W3C Candidate Recommendation Draft 21 May 2025 More details about this document This version: https://www.w3.org/TR/2025/CRD-performance-timeline-20250521/ Latest published version: https://www.w3.org/TR/performance-timeline/ Latest editor's draft:https://w3c.github.io/performance-timeline/ History: https://www.w3.org/standards/history/performance-timeline Commit history Test
29 Feb High-performance Web Worker messages Posted February 29, 2016 by Nolan Lawson in Webapps. Tagged: performance, web workers. 16 Comments Update: this blog post was based on the latest browsers as of early 2016. Things have changed, and in particular the benchmark shows that recent versions of Chrome do not exhibit the performance cliff for non-stringified postMessage() messages as described
I’ve found a very good article explaining Transducers. If you are familiar with Clojure, go and read it: “Understanding Transducers”. But if you are JavaScript developer and not used to read Lisp code, I’ve translated code examples from that article into JavaScript. So you can still read the article and see code examples here. What are Transducers?A quick noob intro: transducers are composable and
Introducing Pokedex.org: a progressive webapp for Pokémon fans The mobile web has a bad reputation these days. Everyone agrees it's slow, but there's no shortage of differing opinions on how to fix it. Recently, Jeff Atwood argued convincingly that the state of single-threaded JavaScript on Android is poor. Then Henrik Joretag questioned the viability of JavaScript frameworks on mobile altogether,
Stay Relevant and Grow Your Career in TechPremium ResultsPublish articles on SitePointDaily curated jobsLearning PathsDiscounts to dev toolsStart Free Trial7 Day Free Trial. Cancel Anytime. Performance has always played a crucial part in software. On the web, performance is even more important as our users can easily change website and visit one of our competitors if we offer them slow pages. As p
With ES6 features landing quickly in native browsers and readily available for use through Babel and Traceur, it seemed like it was time to look not just at support, but also the performance impact of using these features under the current implementations. While there is great promise for the future, the picture of ES6 feature performance today is very muddled and depends on the specific feature b
あらすじ Web技術が複雑になる中で、JavaScriptのプロファイリングをとる方法とは。 プロファイリングを取るためのコードを手で書いてみましょう。 とてもシンプルで、かつ最高のJavaScriptプロファイラ sjsp を作りました。 本当にあった怖い話 上司 「とにかくJavaScriptのコードを速くしてくれ」 私 「分かりました、速くします」 (次の日) 私 「いいプロファイラがないなら作ればいいじゃない」 同じチームの人 「えっ?」 私 「最高のJavaScriptプロファイラ作ったよ」 同じチームの人 「「えっえっ???」」 私 「早速使ってみたらこことここが遅いって分かったよ」 同じチームの人 「「「この子は一体…」」」 JavaScriptのプロファイリングの難しさ 近年、Webブラウザーの処理速度は著しく向上し、その可用性の高さから、アプリケーションのプラットフォーム
Java VM V8 Dart VM complexity ChaCha20 function getBlock(buffer) { var x = new Uint32Array(16); for (var i = 16; i--;) x[i] = input[i]; for (var i = 20; i > 0; i -= 2) { quarterRound(x, 0, 4, 8,12); quarterRound(x, 1, 5, 9,13); quarterRound(x, 2, 6,10,14); quarterRound(x, 3, 7,11,15); quarterRound(x, 0, 5,10,15); quarterRound(x, 1, 6,11,12); quarterRound(x, 2, 7, 8,13); quarterRound(x, 3, 4, 9,14)
You should use <insert library / framework here>, it's the bestestest!
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