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Front-end development Blog and Portfolio for Ashley Watson-Nolan – Senior UI Engineer at Just Eat Update 12/09/2019 The results for the 2019 edition of the Front-end Tooling Survey are now available. If you'd like to view them, check them out here. Update 25/07/2018 Since publishing the initial results, I've updated the survey after receiving 5,461 responses and updated the article and results dat
Now all we have to do is ensure our container elements always have the right breakpoint classes on them, so the correct component selectors will match. Observing container resizesFor most of web development history, it’s been possible to observe changes to the window, but it’s been hard or impossible (at least in a performant way) to observe size changes to individual DOM elements. This changed wh
MDN browser compatibility data: Taking the guesswork out of web compatibility Building the web is hard The most powerful aspect of the web is also what makes it so challenging to build for: its universality. When you create a website, you’re writing code that needs to be understood by a plethora of browsers on different devices and operating systems. It’s difficult. To make the web evolve in a san
はじめに こんにちは、@tsuwatchです。普段はRubyを書くのですが、仕事の幅も広がりつつあり、フロントエンドも本格的にやっていこうということで、 Kaizokuというニコニコ生放送のデスクトップアプリをリリースしました。 人生の大半の時間がニコ生に溶けているわけですが、かねてからコメントビューワを作ろうと思っていたので、この機会に作ってみました。 しかし、Mac版のコメントビューワにはHakumaiという大変素晴らしいコメントビューワが存在するので、少し違う方向を向いた生放送ビューワをかねたアプリにしました。 Hakumaiはコメントビューワとしては数少ないオープンソースなので、実装やコメントサーバの仕様など大変参考にさせて頂きました。この場をお借りして、お礼を申し上げます。 アプリの機能や今後についての紹介はまた別途ブログで書くと思います。 ご興味がありましたら、ぜひ使ってみてい
Locally Scoped CSS Variables: What, How, and Why Published on June 5, 2017 CSS Custom Properties (also popularly called CSS Variables) are here! This is really exciting because we finally have true variables in CSS! What do I mean by true variables? I mean variables that can be updated and altered dynamically in the file. While we had “variables” with pre/post-processors (like Sass and PostCSS), t
Implement Element.scrollIntoView for scroll-behavior: smooth. Currently in Chrome, a call to Element.scrollIntoView will calculate the amount each scroller needs to scroll to align the Element as specified and instantly set the scroll position on that scroller (going from the innermost to the outermost scroller). If Element.scrollIntoView is called with scroll-behavior: smooth, instead of scrollin
// Style: // transition: opacity 1s // transitionを発火する elem.style.opacity = '0'; getComputedStyle(elem); // 終わったら次の画面をactiveにする elem.addEventListener('transitionend', evt => { if (evt.propertyName === 'opacity') { evt.target.remove(); homeScreen.classList.add('active'); } }); /* * でも… */ button.addEventListener('focus', () => { // もしこれがmustacheのようなテンプレート仕組み… render(); }); transitionendが発火されないケース 要
Writing code is only one small piece of being a developer. In order to be efficient and capable at our jobs, we must also excel at debugging. When I dedicate some time to learning new debugging skills, I often find I can move much quicker, and add more value to the teams I work on. I have a few tips and tricks I rely on pretty heavily and found that I give the same advice again and again during wo
const styles = { color: lighten(0.2, '#000'), "font-size": modularScale(1), [hiDPI(1.5)]: { "font-size": modularScale(1.25) } } const styles = { color: '#333', "font-size": '1.33em', '@media only screen and (-webkit-min-device-pixel-ratio: 1.5), only screen and (min--moz-device-pixel-ratio: 1.5), only screen and (-o-min-device-pixel-ratio: 1.5/1), only screen and (min-resolution: 144dpi), only scr
TL;DR Use scale transforms when animating clips. You can prevent the children from being stretched and skewed during the animation by counter-scaling them. Previously we’ve posted updates on how to create performant parallax effects and infinite scrollers. In this post, we’re going to look over what’s involved if you want performant clip animations. If you want to see a demo, check out the Sample
Bong88 là nhà cái cá cược bóng đá được nhiều người tìm kiếm nhờ hệ thống kèo ổn định và tốc độ xử lý nhanh. Do đặc thù vận hành, bong88 có thể thay đổi domain theo từng thời điểm để đảm bảo bảo mật và duy trì truy cập liên tục, khiến người chơi gặp khó khăn khi đăng nhập. Tại đây, 1gom là kênh chính thống cung cấp link uy tín, cũng là nơi hỗ trợ link dự phòng nhanh nhất khi hệ thống thay đổi domai
Frontend Lunch 29 - NOTA Inc.の方々をお招きしました Frontend Lunchは、株式会社はてな社員によるフロントエンド開発についてのPodcastです。今回はNOTA Inc.のakiroomさん、pastakさんをゲストにお招きしました。 Frontend Lunch 27 - FRONTEND CONFERENCEレポート, CSS Containment Frontend Lunchは、株式会社はてな社員によるフロントエンド開発についてのPodcastです。今回はhatz48の司会でJavaScript関連のニュースを読みながら雑談しました。 Frontend Lunch 26 - CSS Grid, ScalaCSS, Snyk, Polymer Frontend Lunchは、株式会社はてな社員によるフロントエンド開発についてのPodcastです
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