AmsterdamJS Special Edition: A Meetup with TC39 Members

👋 Hey-hey, AmsterdamJS Community!

Join us for a special edition of the meetup featuring TC39 members — the people shaping the future of JavaScript. A great chance to hear directly from them and get insider insights into where the language is heading.

📅 Date: May 21, 2026

📍 Location: JetBrains N.V., Terrace Tower, Gelrestraat 16, 1079 MZ Amsterdam, 3rd floor.

🤝 Hosted by JetBrains
JetBrains creates intelligent software development tools used by over 15 million professionals and 88 Fortune Global Top 100 companies. Its lineup of over 30 products includes IDEs like IntelliJ IDEA and WebStorm, an IDE for JavaScript, TypeScript, and related technologies, AI tools such as Junie, Mellum, and JetBrains Central, and team solutions like YouTrack, Qodana, and TeamCity. JetBrains also created Kotlin, used by over 2.5M developers worldwide.

🤝 Supported by
Organizational support from GitNation, the go-to software engineering events you can't miss. Check out upcoming events, including React Summit and JSNation, in June in Amsterdam.

🕑 Event Schedule
18:00 - Doors open – snacks, drinks, networking
18:30 - Intro and announcements
18:35 - Nicolo Ribaudo - Fine-Tuning Native ESM Performance
19:00 - Mikhail Barash and Alberto Tontoni - An IDE for Reading and Navigating the ECMAScript Specification
19:30 - Break with drinks and snacks
**19:45 - TC39 Panel: Eemeli Aro, Jordan Harband, Justin Ridgewell, Luna Pfeiffer, Shane F Carr **and Shumaf Lovpache
20:30 - Networking

🗣 Call for Proposals
Have an idea or story to share? Submit your talk proposal through our CFP form and take the stage at one of our upcoming meetups!

🗣️ Talks
➡️ Nicolo Ribaudo - Fine-Tuning Native ESM Performance
TC39 is working on two proposals, import defer and export defer, whose goal is to allow developers to extract better performance from native ESM, both in the browser and on the server. Let's go together through how they work, and when and where you'll be able to use them!

➡️ Mikhail Barash and Alberto Tontoni - An IDE for Reading and Navigating the ECMAScript Specification
Hi. We will present an experimental IDE for navigating the ECMAScript specification document. The IDE provides a custom pseudocode notation that matches the look-and-feel of the ECMA-262 spec, and supports the usual features (outline view, go to definition, find usages, diff). We'll also demo functionality for advanced navigation and comprehension of pseudocode, such as pattern-based code search within the spec's algorithms, and local refactoring/modifying/annotating the spec for learning purposes.
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👍 Code of Conduct
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