TypeScript Berlin/Sevilla Meetup + a quiz with prizes

Join us for this very special edition of TypeScript Berlin Meetup, where we join forces with the TypeScript Sevilla Meetup group! 💪
Connect with the TypeScript enthusiasts worldwide, get inspired by the talks, join the Q&A session and win prizes in the quiz. 🎁

Our superstar lineup:

⭐️ Tițian Cericova-Dragomir (@TitianCernicova): "Understanding Variance in the Typescript Type System"

Ever wondered why Array is assignable to Array, even though that doesn’t really seem safe? Have you seen the term ‘variance’ thrown around by TypeScript people, but haven’t gotten around to researching what that is? Then this is the talk for you! We will take a deep dive into the type system, understand the other way TypeScript determines assignability. We will start with the basics of what variance is, and then we will see how it impacts every aspect of the type system.

Tițian's bio:
Tițian Cericova-Dragomir is an engineer at Bloomberg, working on TypeScript and JavaScript infrastructure. He is a TypeScript compiler contributor, as well as one of the top answerers with regard to TypeScript on Stack Overflow. Also, he is a huge fan of TypeScript, and he will try to convince you that you should be one too.

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⭐️ Dillion Megida (@iamdillion): "PropTypes vs TypeScript"

TypeScript in React is often used for defining Component's Props types, and alternatively, PropTypes can be used. Although they have similar purposes--type-checking--they work in different ways and are beneficial in their own ways. In this talk, I would share the differences between these tools and their relevance to React applications. In addition, I'll share simpler ways of combining both in applications.

Bio:
Dillion is a Software Engineer at ThisDot and a Technical writer at many publications. He is passionate about learning, building, and simplifying topics around the web via articles and videos.

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⭐️ Kajetan Świątek (@KajetanSw): "Elm, a delightful language for learning functional programming"

Functional programming is still a mystery for many developers. There is an overwhelming amount of math and theory surrounding it, to the point of scaring people away. But it turns out that with the right tools, it is possible to learn FP and to get productive fast!

This talk sums up my first year of learning functional programming in the JavaScript ecosystem and answers questions that many developers have in mind when thinking about starting their FP journey. With this, you'll learn about strong points of learning FP, why using Elm will set you up on the right path for creating reliable web applications and how the language compares to our beloved TypeScript.

Kajetan's bio:
Former construction engineer, now building software instead. Front-end developer at SoftServe. Loves learning new things and sharing his findings with others via tech talks or articles.

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During this meetup, we will host a quiz, where you can win a JetBrains license, "TypeScript in 50 Lessons" book by Stefan Baumgartner and Prisma swag. 🎁

Jet Brains: https://www.jetbrains.com/

More about the book: https://www.smashingmagazine.com/printed-books/typescript-in-50-lessons/

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TypeScript Sevilla Meetup Group: https://www.meetup.com/Sevilla-TypeScript/

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This meetup will be streamed to YouTube, and Prisma will add the subtitles later for accessibility.
Link to the stream: https://www.youtube.com/watch?v=RH49aarW6sU

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See you there! 🤗