Reporting Core Web Vitals With The Performance API — Smashing Magazine
The Performance API is a set of standards for measuring and evaluating performance metrics with JavaScript. Think of it as a box containing all of the same functionality for reporting on Core Web Vitals and general performance statistics that you’d get in many performance testing tools. This article demonstrates how to use the Performance API to generate performance metrics directly in the DOM to
2023 JavaScript Rising Stars
Welcome to the 8th edition of the JavaScript Rising Stars, the place to see the trends about the JS ecosystem in 2023. Let's see how a set of UI components you copy-paste took the world by storm! The following graphs compare the number of stars added on GitHub over the last 12 months. We analyzed projects coming from Best of JS, a curated list of the best projects related to the web platform. Note
The JavaScript Handbook
The Valley of Code is currently transitioning to its new home
GitHub - tc39/faq
This document contains typical responses to questions that are commonly raised about JavaScript language development, both within the community and to the committee via our various discussion platforms. Anyone may suggest new topics by opening an issue. Delegates may add new topics by creating a Pull Request. If a delegate disagrees with one of these topics, it should be removed. It can be re-adde
Baseline 2023 | Blog | web.dev
Baseline 2023 Stay organized with collections Save and categorize content based on your preferences. Baseline is coming to caniuse.com! In this post, learn about the integration and discover some of the features that became part of Baseline in 2023. With the new definition of Baseline, there are two stages in a feature's lifecycle: when it becomes newly available, and then when it becomes widely a
Seamless navigation made possible with view transitions | Blog | Chrome for Developers
Transitions have numerous benefits for users, including helping to keep them in context and reduce the perception of latency. Developers want the ability to create seamless transitions between pages, helping to increase user engagement with their site. However, enabling state transitions was really hard as it required developers to manage states of two different elements. Even something like a sim
Picture-in-Picture for any Element, not just <video> | Web Platform | Chrome for Developers
Use cases Custom video player A website can provide a Picture-in-Picture video experience with the existing Picture-in-Picture API for <video>, however it is very limited. The existing Picture-in-Picture window accepts few inputs, and has limited ability for styling them. With a full Document in Picture-in-Picture, the website can provide custom controls and inputs (for example, captions, playlist
14 Linting Rules To Help You Write Asynchronous Code in JavaScript
Debugging asynchronous code in JavaScript can feel like navigating a minefield at times. You don't know when and where the console.logs will print out, and you have no idea how your code is executed. It's hard to correctly structure async code so it executes in the right order as you intend it to. Wouldn't it be nice if you had some guidance while writing asynchronous code, and to get a helpful me
Exploiting XSS in hidden inputs and meta tags
Published: 11 July 2023 at 13:00 UTC Updated: 11 July 2023 at 13:00 UTC In this post we are going to show how you can (ab)use the new HTML popup functionality in Chrome to exploit XSS in meta tags and hidden inputs. It all started when I noticed the new popover behaviour with Chrome on Twitter. We all know about annoying modal dialogs that nag you to subscribe to a newsletter - now you can create
Virtual DOM: Back in Block | Million.js
A little over four years ago, Rich Harris released Virtual DOM is pure overhead (opens in a new tab), analyzing the performance of traditional virtual DOM manipulation.[0] [0] "you've probably heard the phrase 'the virtual DOM is fast', often said to mean that it's faster than the real DOM. It's a surprisingly resilient meme" - Harris, 2018 In his article "Virtual DOM is pure overhead," Rich Harri
Animate elements on scroll with Scroll-driven animations | CSS and UI | Chrome for Developers
Scroll-driven animations are a common UX pattern on the web. A scroll-driven animation is linked to the scroll position of a scroll container. This means that as you scroll up or down, the linked animation scrubs forward or backward in direct response. Examples of this are effects such as parallax background images or reading indicators which move as you scroll. A reading indicator atop a document
Scroll-driven Animations
# Introduction Scroll-driven animations are a common UX pattern on the web. These are animations that are linked to the scroll position of a scroll container. This means that as you scroll up or down, the linked animation scrubs forward or backward in direct response. Think of interesting effects such as parallax background images or reading indicators which move as you scroll. A similar type of s
Linear easing generator
Generate linear() easings from JavaScript and SVG
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Vanilla JavaScript, Libraries, And The Quest For Stateful DOM Rendering — Smashing Magazine
CSS Media Query for Scripting Support - Stephanie Stimac's Blog
Measuring with Performance Timing Markers 📏
JavaScript performance optimization - Learn web development | MDN
Developer Docs @ The Green Web Foundation
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