This talk will introduce you to some advanced TypeScript techniques that can make your React components more expressive and predictable. We’ll cover union types, discriminated unions, and conditional types, providing practical examples that demonstrate how these tools can help model complex component behaviors. You'll gain valuable insights into how TypeScript can improve your React components, providing a foundation to explore and apply these powerful features in your projects.

Should we take a look at JavaScript when everyone is writing in TypeScript? What happens to the standard? What did we get last year? What new features can we expect this and next year? And most importantly, when will Observer be standardized? Let's try to answer all these questions and even a little more, dream about the future, and enjoy that Observer is alive (or not).

<p>There are traps in the world of software development that can catch even experienced developers off guard. The talk will reveal the non-obvious aspects of using generated contracts between the server and the client, in particular, in the context of TypeScript and GraphQL. Join us to hear a story where developers face real challenges and temptations in the world of code. We'll see what consequences blind compliance with the conditions can lead to. And also we will try to find out "where is the Devil hiding in?".</p>

This talk aims to highlight the latest features and tools in the Node.js ecosystem. Nikita will showcase new JavaScript/TypeScript constructs, explain use cases for the new features in Node.js v20, and provide insight into the rising popularity of various frameworks and tools. However, the main focus will be on providing insightful answers to critical questions: how, when, and most importantly, why these features should be used in product development.

In this talk we will explore a way to develop and deploy using only local and production environment. Together we will take a look how AB-tests, feature toggles, good test strategy and CI/CD can increase the development velocity and time-to-fix rate.

<p> Instead of provocative theses, I will try to share a vision with you: </p> <ul> <li>what's important about TypeScript and its ecosystem in recent years</li> <li>why TypeScript won't be able to replace ReScript for me and why I don't see it as a problem</li> <li>what (didn't) appear in React, why and what risks I see</li> <li>how competitive ecosystems have developed and why you should be interested in them</li></ul>

Join us for an exclusive look at our No-Code Editor. I'll guide you through its design, architecture, and the decisions we've made — but don't worry, I'll keep the technical jargon accessible and easy to follow. Explore how our project is structured and the libraries we use. It's a backstage pass to our startup, made simple!

In this talk, we look at situations where TypeScript fails badly and learn why things have to be that way. We talk about trade-offs, workarounds, and ultimately solutions for all the damn, terrible lies we tell ourselves when using TypeScript.