your web app is bloated

Memory usage of popular web apps.

The Cascade and Other Essential Unessentials

The importance of learning critical front-end skills.

Rebass

React primitive UI components built with styled-system.

The ‘Developer Experience’ Bait-and-Switch

“We cannot continue to use as much JavaScript as is now ‘normal’.”

Batificity

Not the css specificity guide you deserve, but the one you need right now.

GitHub Primer open-source projects

Building user interfaces with GitHub’s design system.

Introducing Trashy.css

Frontend debugging with a small utility library.

Tradeoffs in server side and client side rendering

What to use when.

Chrome 70 beta: shape detection, web authentication, and more

Web fingerprint sensor and other new features.

Next Generation Package Management

Introducing tink, a proof of concept of an install-less installer.

Updating a CSS Variable with JavaScript

A short tutorial.

HTML elements, unite!

The Voltron-like powers of combining elements.

Now + GitHub

Push to deploy, master aliasing, instant rollbacks.

Cache API for Cloudflare Workers is now in Beta!

Run JavaScript from Cloudflare’s data centers.

Refresh CSS Bookmarklet v2

Utility to refresh all stylesheet on the current web page.

Extended Validation Certificates are Dead

The usefulness of EV certificates has declined.

Sublime Merge

Meet a new Git client, from the makers of Sublime Text

Electron 3.0.0

New release of the framework to build cross platform desktop apps.

Next.js 7

What’s new in the framework for static and server-rendered apps.

Idle Until Urgent

Better user experience by breaking up long-running JavaScript tasks.

Chrome’s Experimental Image Lazy Loading Flag

The current state of browser based Lazy Loading.

“JavaScript is like salt. If you add just enough salt to a dish, it’ll help make the flavour awesome. Add too much though, and you’ll completely ruin it.”

Announcing the Immersive Web Working Group

The W3C formalizes VR/AR as part of the broader web platform.

Accurately measuring layout on the web

Advantages and drawbacks of different techniques.

A step by step guide to monitoring the competition with the Chrome UX Report

Ways to get real user insights out of the report.

The State of Fieldset Interoperability

What’s broken in HTML fieldset and what to do about it.

Web Developer Representation in W3C

Let’s help web developers to get a seat at the W3C table.

How to Build a Low-tech Website?

The site that goes off-line during bad weather periods.

Announcing TypeScript 3.1

Now with mapped tuples, typesVersions, and more.

Plans for the Next Iteration of Vue.js

What’s coming for the popular JavaScript UI framework.

The dialog element

You can use the HTML dialog element to simplify pop-ups and modals.

Mobile First Index Checker

Is your website ready for Google’s mobile first indexing?

What is Modular CSS?

“Modular CSS is predictable, maintainable, and performant.”

Create React App 2.0: Babel 7, Sass, and More

What’s new in the JavaScript library for building user interfaces.

New Firefox Focus comes with search suggestions, revamped visual design

Mozilla’s mobile browser keeps getting better.

Introducing dav1d: a new AV1 decoder

New developments for the free video codec AV1.

Accessibility Cheatsheet

Practical approaches for making your website accessible to everyone.

Use Cases For Flexbox

What should we use Flexbox for, and what it is not so good at?

30 seconds of code

Curated collection of useful JavaScript snippets.

“When evaluating code remember you are viewing someone’s compromises not their plans. Assume good intent.”

Creating Horizontal Scrolling Containers the Right Way

How CSS Grid can help implement a horizontal scrolling component.

Calls between JavaScript and WebAssembly are finally fast

You can expect other browsers to do the same soon.

Start Performance Budgeting

Let’s make performance part of project goals from the start.

RawGit has reached the end of its useful life

You should migrate away as soon as possible.

“A framework doesn’t make your site fast. You do that.”

JavaScript Visualizer

A tool for visualizing Execution Context, Hoisting, Closures, and Scopes.

“After almost 20 years of explaining websites don’t need to look the same in all browsers I think I’m done. You have the ability to make progressively enhanced websites, more so than ever before.”

Firefox to support Google's WebP image format for a faster web

Now Apple’s Safari is the only major holdout.

“Software engineering is 90% software engineering and 10% complaining about software engineering.”

Around 62% of all Internet sites will run an unsupported PHP version in 10 weeks

The ticking PHP 5.6.x time bomb.

The Illustrated TLS Connection

Every byte of a TLS connection explained and reproduced.

Using the Web Audio API

Tutorial with example.

33 Concepts Every JavaScript Developer Should Know

Take the time to really understand JavaScript.

“If coding doesn’t feel like painting or passionate creative writing, you have at least another level to master before calling yourself a programmer.”

Future of Software: Developers at the center of the universe

GitHub makes it easier to apply review feedback to your code.

“I spend so much of my time trying to make complicated things more simple. It looks really simple but it’s actually kind of complicated.”

Introducing GitHub Actions

“A whole new way of thinking about how we deal with infrastructure.”

Encrypted SNI Comes to Firefox Nightly

Preventing attackers from exploring your browsing history.

How to stop using console.log() and start using your browser’s debugger

Debugging in Google Chrome.

How Many htaccess Redirects Are Too Many?

Let’s find the point at which performance drops.

Smart Bundling: How To Serve Legacy Code Only To Legacy Browsers

Let’s rethink asset delivery for the modern web.

What’s Unique About CodeSandbox

The features that you cannot find in many other IDEs.

Zero-day in popular jQuery plugin actively exploited for at least three years

All jQuery File Upload versions before 9.22.1 are vulnerable.

“Programmers are people who agreed to do homework for the rest of their lives.”

Hard Costs of Third-Party Scripts

Let’s investigate the cost that’s passed on to the user.

Promises and async/await cheatsheet

A handy cheatsheet to help make sense of promises and async/await.

Firefox 63: Tricks and Treats!

New release with support for Web Components, and much more.

Awesome-CSS-Houdini

A curated list of CSS Houdini resources.

React v16.6.0: lazy, memo and contextType

What’s new in the popular JavaScript library for building UIs.

Release Notes for Safari Technology Preview 68

Safari preview with many improvements and bug fixes.

Server to Client

How our code makes it to the browser.

Discontinuing support for Android Nearby Notifications

No more Eddystone and Physical Web beacon notifications.

8 Tips for Great Code Reviews

Why code reviews are important and how to improve the process.

“Working on the web today feels like assembling furniture from Ikea without instructions.”

Concise Media Queries with CSS Grid

Easy organization of responsive layouts.

Measuring Performance With Server Timing

Monitor back-end and front-end performance all in one place.

WebAssembly Threads ready to try in Chrome 70

Chrome enables multi-threaded web apps.

Atom understands your code better than ever before

GitHub’s editor has started to parse your code while you type.

The CSS Working Group At TPAC: What’s New In CSS?

Examples and demos.

Guess.js

Enabling Machine Learning driven user-experiences on the web.

Designing accessible web with privacy

The Accessibility Object Model will make web design for developers easier.

Is Today the Best Time to be a Developer?

No…but we’re getting better.

Implementing a variable font with fallback web fonts

How you can use variable fonts today.

“Why do I prefer libraries over frameworks? For the same reason I prefer composition over inheritance.”

Less Snake Oil, More Context

There is no performance advice that is always good.

Make sure Google can see lazy-loaded content

Lazy loading in a Google Search friendly way.

TabNine

Autocompleter for all languages based on machine learning.

Tags to DOM

How browsers create trees and how the DOM responds to events.

Prettier 1.15

The popular code formatter now supports HTML, Vue and Angular.

Cloud Computing without Containers

“Workers are the future of Serverless and cloud computing in general.”

Grid Tile Layouts with auto-fit and minmax

Why the display of tile layouts on the web is a solved problem.

Why the React community is missing the point about Web Components

React vs. open web standards.

HTTP/3

The coming new HTTP version that uses QUIC for transport.

Emoji Builder

Create and share your own emojis.

“It’s easier to make a fast website than it is to keep a website fast.”

Five years of PostCSS: State of the Union

The creator of PostCSS takes a chance to look back.

Web Performance 101

Introduction to the modern web loading performance.

PageSpeed Insights, now powered by Lighthouse

New analysis engine for Pagespeed Insights.

Things Nobody Told Me About Being a Software Engineer

How it is to work as a professional software engineer.

Web High Level Shading Language

Introduction to the new shading language named WHLSL.