WeAreDevelopers Logo WeAreDevelopers
Sign in
For You LIVE
WeAreDevelopers LIVE • Jan 21, 2026

WeAreDevelopers LIVE – You Don’t Need JavaScript, Modern CSS and More

Chris Heilmann , Daniel Cranney , Theodore Lefevre

Theodore Lere proves you can ditch JavaScript for complex UI interactions. Learn how modern CSS and semantic HTML natively handle modals and accordions, eliminating unnecessary codebase bloat.

Pause
Mute Enter Fullscreen
#1 about 8 min

Reevaluating the default reliance on JavaScript for interactions

Modern semantic HTML and CSS natively handle interactions and accessibility without unnecessary JavaScript dependencies.

#2 about 8 min

Managing AI generated code and slop in open source

Open source maintainers face overwhelming volumes of low-quality AI generated pull requests that game bug bounty programs.

#3 about 7 min

Handling complex date calculations with the Temporal API

The new Temporal API replaces the legacy JavaScript date object to provide predictable and standard time zone handling.

#4 about 6 min

Navigating native HTML regressions and browser compatibility issues

Broken native input elements like datalist on Safari force developers to implement complex custom UI workarounds.

#5 about 4 min

Exploring bad interface design through web navigation bots

Automating UI navigation exposes the extreme inefficiency and complexity of modern web application interactions.

#6 about 4 min

Understanding the repeated failures of 3D web environments

Virtual reality and 3D web applications remain novelties due to poor usability, nausea, and missing physical haptics.

#7 about 5 min

Analyzing bizarre technology headlines and software engineering news

A review of strange technological developments highlights AI lawsuits, extreme monetization, and evolving malware threats.

#8 about 7 min

Building accessible accordions using native HTML details tags

The native details and summary HTML elements provide fully accessible accordion components without relying on JavaScript event listeners.

#9 about 7 min

Creating interactive modal dialogs natively without JavaScript logic

The HTML dialog element combined with command invokers allows developers to build functional modals directly in the markup.

#10 about 7 min

Highlighting table of contents dynamically using CSS properties

The target-current and scroll-target-group CSS properties offer a native alternative to JavaScript intersection observers for navigation highlighting.

#11 about 9 min

Navigating CSS complexity and embracing core frontend technologies

Mastering fundamental CSS and HTML capabilities prevents developers from overusing external frameworks and unnecessary JavaScript abstractions.

Matching moments

3:51 min

Audience questions on accessibility and framework tradeoffs

Rowdy Rabouw Rowdy Rabouw · World Congress 2022

1:12 min

Overview of the JavaScript date and time ecosystem

Marco Sieben Marco Sieben · Europe 2026 Virtual

4:30 min

Tracking open source community trends in JavaScript native frameworks

Dan Cranney Dan Cranney +2 · LIVE

2:14 min

Exploring frontend development choices beyond standard JavaScript frameworks

Stacy Cashmore · World Congress 2022

5:12 min

The rapid evolution of JavaScript and web tooling

Lorenzo Pieri · World Congress 2023

11:55 min

Audience questions on performance, comparisons, and responsive styling

Maximilian Heinrich · JS Congress

More from WeAreDevelopers LIVE

Fake or News - Claude's DNA Discovery, Quick Cloning & Crime on Insta thumbnail
6:07
3 days ago

Fake or News - Claude's DNA Discovery, Quick Cloning & Crime on Insta

Andrew MacLean, Daniel Cranney, Christian Heilmann

WeAreDevelopers LIVE - Playing in Production thumbnail
1:06:40
3 days ago

WeAreDevelopers LIVE - Playing in Production

Andrew MacLean, Daniel Cranney, Christian Heilmann

WeAreDevelopers LIVE - Is CSS Catching Up to Flash? thumbnail
1:03:33
17 days ago

WeAreDevelopers LIVE - Is CSS Catching Up to Flash?

Chris Heilmann, Daniel Cranney, Bramus Van Damme

WeAreDevelopers LIVE - Project Chopin: Make Your Team and Agents Play Along thumbnail
1:21:17
24 days ago

WeAreDevelopers LIVE - Project Chopin: Make Your Team and Agents Play Along

Chris Heilmann, Daniel Cranney, Krzysztof Cieślak

Fake or News - AI Toothbrushes, Carrier Pigeon Tech & Life on Mars - Krzysztof Cieślak thumbnail
4:23
25 days ago

Fake or News - AI Toothbrushes, Carrier Pigeon Tech & Life on Mars - Krzysztof Cieślak

Chris Heilmann, Daniel Cranney

WeAreDevelopers LIVE - Open Source Agent Toolkits thumbnail
1:00:38
about 1 month ago

WeAreDevelopers LIVE - Open Source Agent Toolkits

Chris Heilmann, Daniel Cranney, Eddie Jaoude

Related videos

WeAreDevelopers LIVE – Spicy Vanilla Web, CSS Magic & More thumbnail
59:40
LIVE • 11 months ago

WeAreDevelopers LIVE – Spicy Vanilla Web, CSS Magic & More

Chris Heilmann, Daniel Cranney, Peter Kröner

WeAreDevelopers LIVE – Keeping Up with Styles, Data & More thumbnail
1:16:52
LIVE • 8 months ago

WeAreDevelopers LIVE – Keeping Up with Styles, Data & More

Chris Heilmann, Daniel Cranney, Peter Kröner

WeAreDevelopers LIVE - CSS is DOOMed thumbnail
59:11
LIVE • 6 months ago

WeAreDevelopers LIVE - CSS is DOOMed

Chris Heilmann, Daniel Cranney, Justin Halsall, Christian Schaefer

WeAreDevelopers LIVE – Frontend Inspirations, Web Standards and more thumbnail
1:06:20
LIVE • 10 months ago

WeAreDevelopers LIVE – Frontend Inspirations, Web Standards and more

Chris Heilmann, Daniel Cranney, Jan Deppisch

WeAreDevelopers LIVE - Yes, CSS Can Do That! thumbnail
1:04:00
LIVE • 7 months ago

WeAreDevelopers LIVE - Yes, CSS Can Do That!

Chris Heilmann, Daniel Cranney, Zoran Jambor

WeAreDevelopers LIVE - Is CSS Catching Up to Flash? thumbnail
1:03:33
LIVE • 17 days ago

WeAreDevelopers LIVE - Is CSS Catching Up to Flash?

Chris Heilmann, Daniel Cranney, Bramus Van Damme

Related articles

From learning to earning

Jobs that call for the skills explored in this talk.