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April 3, 2024April 5, 2024

Workshop & Talks: CityJS

Tejas Kumar
Tejas Kumar Director of Developer Relations
Atila Fassina
Atila Fassina DevRel Team Lead

Be sure to keep an eye out for us at the event! We’d love to have a chat and get acquainted with you. Plus, there’s a chance we’ll have some awesome swag to share. Can’t wait to meet you there!


The force behind an exceptional JavaScript Conference that has grown organically from the roots of a thriving monthly meet-up in London. At the heart of our story is the collaborative spirit of four distinguished JavaScript groups: Halfstack, JSMonthly, ex London JSCommunity, and London Node User Group.

Workshop: “Advanced React” by Tejas

Happening on April 4, 2024 at 2:00 PM in the React Workshops Zone

Dive deep into the world of React in this advanced workshop, designed for experienced developers seeking to enhance their React skills. Our interactive sessions will cover the latest features and best practices in React development, including how JSX works, the Fiber architecture, and advanced component patterns. Learn how to optimize performance, manage state effectively, and build scalable, maintainable applications. You’ll get hands-on experience ensuring you can apply your knowledge immediately. Whether you’re working on large-scale projects or intricate single-page applications, this workshop will elevate your React expertise to the next level. Join us for an enriching journey into advanced React techniques, networking with industry experts, and pushing the boundaries of what you can achieve with this powerful library.

Talk: “Event Sourcing for JS Devs” by Tejas

Speaking on April 5, 2024 at 4:15 PM in the Main Auditorium

This talk teaches us a powerful architectural pattern and helps us navigate the tech landscape using it. We’ll understand CQRS, Kafka, and more and see how it all fits together to build powerful things on the web today.

Talk: “Solid’s Max Reactivity” by Atila

Speaking on April 5, 2024 at 9:45 PM in the Education Centre

We will have a look at the mechanisms by which SolidJS empowers us to build highly performant web apps with a mental model that works just as you’d expect. This talk is a step further on the consequences of choosing fine-grained reactivity: benefits for developer experience, efficiency, and end-user performance. How does the compiler helps you out, and what kind of patterns do developers need to know in order to maximize the output.