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 · WWC 2022

4:30 min

Tracking open source community trends in JavaScript native frameworks

Dan Cranney +2 · LIVE

2:14 min

Exploring frontend development choices beyond standard JavaScript frameworks

Stacy Cashmore · WWC 2022

5:12 min

The rapid evolution of JavaScript and web tooling

Lorenzo Pieri · WWC 2023

10:20 min

Advocating for semantic HTML over complex framework component workarounds

Chris Heilmann +2 · LIVE

2:33 min

Expanding JavaScript horizons with WebAssembly and backend possibilities

Sasha Shynkevich · LIVE

More from WeAreDevelopers LIVE

Aliens in Quarantine, Python Deprecates Loops, and AI Buys Old Books - Zbyszek Tenerowicz thumbnail
5:43
5 days ago

Aliens in Quarantine, Python Deprecates Loops, and AI Buys Old Books - Zbyszek Tenerowicz

Chris Heilmann, Daniel Cranney

WeAreDevelopers LIVE - Node and Package Security thumbnail
1:08:30
5 days ago

WeAreDevelopers LIVE - Node and Package Security

Chris Heilmann, Daniel Cranney, Zbyszek Tenerowicz

WeAreDevelopers LIVE - Streaming HTML thumbnail
1:10:26
12 days ago

WeAreDevelopers LIVE - Streaming HTML

Chris Heilmann, Daniel Cranney, Jad Joubran

WeAreDevelopers LIVE - CODE100 at WeAreDevelopers Europe thumbnail
1:02:34
19 days ago

WeAreDevelopers LIVE - CODE100 at WeAreDevelopers Europe

Chris Heilmann, Daniel Cranney, Justin Halsall, Werner Jeschko, Nicole Jeschko, Mirco Tomić

WeAreDevelopers LIVE - Web Performance in an AI World thumbnail
1:07:59
26 days ago

WeAreDevelopers LIVE - Web Performance in an AI World

Chris Heilmann, Daniel Cranney

FIFA Hack, Midjourney Does Ultrasounds, and Trampoline Traffic Lights - Nicole Jeschko and Werner Jeschko thumbnail
5:55
about 2 months ago

FIFA Hack, Midjourney Does Ultrasounds, and Trampoline Traffic Lights - Nicole Jeschko and Werner Jeschko

Chris Heilmann, Daniel Cranney

Upcoming sessions on this topic

Open session

World Congress 2026 North America

Architecting AI in Angular: WebMCP, A2UI, and the Agent Experience

Ankita Sood

Sr. Principal Engineer @ Secureworks | Angular GDE

Ankita Sood
Open session

World Congress 2026 North America

When Humans Stop Writing Code: Rethinking Languages, Compilers, and Responsibility

Simon Auer

Organizer of flutter vienna meetup and CEO of marqably

Simon Auer
Open session

World Congress 2026 North America

Small LLM in your Browser: Huge Opportunities for Web Applications

Daniel Ostrovsky

UI/UX Architect at Payoneer | AI Architect | Full Cycle Development Expert | Public Speaker | Open Source Contributor |

Daniel Ostrovsky
Open session

World Congress 2026 North America

Vibe Coding Accessibility

Karl Groves

Focused on actively fixing accessibility

Karl Groves
Open session

World Congress 2026 North America

Beyond Vibe Coding: Using CLI Tools as Your AI Counterpart in Pair Programming

Ron Veen

Java enthusiast and Special agent for Team Rockstars IT

Ron Veen
Open session

World Congress 2026 North America

Full Stack with Flutter - are we there yet?

Nemanja Stošić

Senior Flutter Developer

Nemanja Stošić

Related videos

WeAreDevelopers LIVE – Spicy Vanilla Web, CSS Magic & More thumbnail
59:40
LIVE • 9 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 • 6 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 • 5 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 • 9 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 • 5 months ago

WeAreDevelopers LIVE - Yes, CSS Can Do That!

Chris Heilmann, Daniel Cranney, Zoran Jambor

WeAreDevelopers LIVE - Streaming HTML thumbnail
1:10:26
LIVE • 12 days ago

WeAreDevelopers LIVE - Streaming HTML

Chris Heilmann, Daniel Cranney, Jad Joubran

Related articles

From learning to earning

Jobs that call for the skills explored in this talk.