meet.js KRK

Once again! Delicious snacks, beer, great presentations, and all your JS folks in one place. In cooperation with Brainly, once again we bring you the best meetups in town.

For senior developers, JavaScript interns, and web apps enthusiasts, this meetup is the best way to meet people, share and gather new knowledge.

Take all your friends and see you soon!

Presentations:

• Radosław Warisch - User Performance at Scale: Lessons Learned

We have encountered many obstacles while optimizing a NextJS application for hundreds of millions of users. The presentation covers Core Web Vitals and the use of getServerSideProps, as well as the traps that needed to be resolved in order to improve user performance. Attendees will gain valuable insights on how to optimize their own applications for large user bases, and the importance of monitoring and addressing key performance metrics.

• Przemysław Nowak - Frontend scaling ecosystem

Over the past two years, Brainly has made substantial investments to improve our operations by creating automation, frameworks, and tools loved by developers. Our new Brainiac framework is a complete ecosystem for building React applications with incredible speed. In this presentation you will learn how to prepare your codebase to scale to thousands of developers.

• Tomek Łukasik - A date with timezone? Today, tomorrow?

We live in a global world with international companies and cloud service providers. Time differences are natural for many of us, but what do we really know about the concept of time zone? Let’s check our knowledge and talk about potential problems caused by carelessly using dates in the digital world.

• Mateusz Kwaśniewski - Put a flag on it. Busy developer’s guide to feature toggles

Learning outcomes:

* Understand main motivation for feature toggles

* Hire toggles for different “Jobs to be Done”

* Manage toggles at scale

Or on a less serious note we’ll:

* make fun of long-lived feature branches in 19th and 21st century

* do Beyonce-Driven Development

* find out what toggles and your dog have in common