WarsawJS’ Post

We have a surprise for you! Our last WarsawJS Meetup #115 featured an exceptional lightning talk that you simply must see. Waleria Gorobets, a well-known actress, shared her vision in a presentation titled "Technology of Mass Healing" 💡 If you're curious about how technology can serve love instead of destruction, this video is for you! Waleria inspires and shows us how we can create a future full of positive changes. 🛠️❤️ Enjoy watching! 🍿 🎥 Video — https://lnkd.in/dwhg6mCn Don't miss WarsawJS Meetup #116 on July 10th! We have a lot of exciting presentations lined up. Get your tickets by clicking the link below 👇 🔖 Tickets: https://lnkd.in/d3wy-w2z #WarsawJS #Meetup #Technology #TechForGood

The second lecture at WarsawJS Meetup #116 is a real treat for all JS enthusiasts, of which there is no shortage among us. Let��s get to the details! 🔎 This fantastic presentation will be delivered by Andrii Romasiun — Frontend Engineer at Strathberry. Andrii is a full stack engineer with over five years of experience, working with various technologies like Remix and Nest, as well as hobby programming in C++. Throughout his career, he has built e-commerce software, open-source crypto trading terminals, and COVID mitigation software for public places. He enjoys technical writing and working in the open-source space. He also founded open-source alternatives to Google Analytics and reCaptcha. Check out what he will be presenting to us 🧐 👨🏫 Writing secure JavaScript 👨🏫 In my speech, I want to talk about web security and how to write secure JavaScript. I will discuss how small bugs have opened huge vulnerabilities even in big companies like Google and Cloudflare. What are the common and uncommon vulnerabilities in JS full stack applications (XSS, header poisoning, SQLi, clickjacking, directory traversal, RCE, open redirects, and more), with real-life examples, and how to detect, prevent, and mitigate such vulnerabilities. And at the end, I'll give a short talk about how to set up a secure coding environment and why it's important (static code analysis, environment configuration, dependency management). Social media 🖱 ➛ https://lnkd.in/dduk9PJq  ➛ https://lnkd.in/dfEWusDh 🔖 Reservation — https://lnkd.in/d3wy-w2z  👉 Livestream — https://warsawjs.com/live Andrii Romasiun will be presenting on Wednesday, 10.07 at 18:30 🕡 at our Meetup. You can’t miss it! 🎉 #WarsawJS #Meetup #JavaScrips #TechTalk

We warmly invite you to watch the latest recording from WarsawJS Meetup #115! Michał Miszczyszyn presented on “The Power of Property-Based Testing in TypeScript / Strengthening Code Quality,” and you can't miss it! 👀 In this talk, you'll learn what property-based testing is and how it can significantly improve the quality and reliability of your code. Michał explains the principles of this technique in an accessible way, shares practical examples, and demonstrates how property-based testing can uncover bugs and edge cases that traditional testing methods often miss. A definite must-watch for every developer! Enjoy the show! 🍿 🎥 Video — https://lnkd.in/duyFZ4zG On July 10th, WarsawJS Meetup #116 kicks off with a new lineup of inspiring talks. Don’t miss out and reserve your tickets by clicking the link below 👇 🔖 Tickets: https://lnkd.in/d3wy-w2z #WarsawJS #Meetup #TypeScript #CodeQuality

To kick off WarsawJS Meetup #116, we've prepared something absolutely fantastic. This is a talk you definitely don't want to be late for! ⌚ The entire event will start on a high note with Michał Michalczuk — Senior Software Engineer at Tektit Consulting GmbH. Michał also works as an IT trainer at Infoshare Academy. In the past, he has worked on Jira Cloud and Atlassian Forge projects. Michał talks and records materials on front-end and web development. He is one of the hosts of the shows "Śniadanie z Programowaniem" and "Z Archiwum IT" organized by Just Join IT. So, what will he be talking about with us? 👨🏫 TypeScript Template Literal Types - Who Needs It Anyway? 👨🏫 A long, long time ago, TypeScript 4.1 brought a major change by introducing Template Literal Types. After this release, examples like type-based parsers or type-based SQL engines popped up like crazy. In the subsequent releases, we got even more Template Literal Types features! Cool. But it doesn’t answer our question - “Who needs it anyway?” I’ll talk about Template Literal Types, and we’ll explore more real-life use cases for them than just the mentioned type-based SQL engine :) Social media 🖱 ➛ https://lnkd.in/dxqWhuJV  ➛ https://lnkd.in/d3yq6Gmj  ➛ https://lnkd.in/d5iidPSW  ➛ https://lnkd.in/diRfYF8W  ➛ https://lnkd.in/d3MrHPwt  ➛ https://michalczukm.xyz 🔖 Reservation — https://lnkd.in/d3wy-w2z  👉 Livestream — https://warsawjs.com/live Michał Michalczuk will be speaking on Wednesday, July 10th at 18:30 🕡 at our Meetup. You can’t miss this! 🎉 #WarsawJS #Meetup #TypeScript #TechTalk

Droga społeczności WarsawJS, Nasza koleżanka Lena potrzebuje teraz naszej pomocy bardziej niż kiedykolwiek. Organizuje zbiórkę na jej leczenie i każda wpłata przybliża nas do celu. Wierzymy, że razem możemy zrobić różnicę i wspierać Lenę w tej trudnej walce. Zachęcamy Was do dołączenia do zbiórki i podzielenia się informacją z innymi. Wasze wsparcie jest nieocenione. Razem możemy osiągnąć cel jak najszybciej! Dziękujemy za Waszą pomoc i solidarność. WarsawJS

You can't miss this! Olga Milczek (Box) prepared an amazing lightning talk at WarsawJS Meetup #115 titled "Less is slow. When a few lines of code can make your app much slower" 🎤📹 Have you always thought that shorter code is better? Olga debunks this myth, showing how minimalism in code can lead to performance and readability issues. Through real-life examples, you'll learn how a few elegant lines of code can slow down your application and complicate its maintenance. Olga will provide tips on finding the perfect balance between brevity and efficiency. This is a great lesson for anyone who wants to write efficient and clear code 🧑💻⚡ Enjoy watching! 🍿 🎥 Video — https://lnkd.in/d8iTKedD We encourage you to join us for WarsawJS Meetup #116, which will take place on July 10th. Fascinating presentations await you! You can get your tickets by clicking the link below 👇 🔖 Tickets: https://lnkd.in/d3wy-w2z #WarsawJS #Meetup #CodeOptimization #CodingTips

📢 The full agenda for WarsawJS Meetup #116 is now available! 📢 We are delighted to introduce the speakers and topics that will be discussed at our upcoming meeting on July 10th at the Paramount office. We have prepared exceptional presentations that you definitely don't want to miss! 👨🏫 Michał Michalczuk — TypeScript Template Literal Types - Who Needs It Anyway? 👨🏫 A long, long time ago, TypeScript 4.1 brought a major change by introducing Template Literal Types. Following this release, examples like type-based parsers or type-based SQL engines spawned like crazy. In subsequent releases, we got even more Template Literal Types features! Cool. But it doesn’t answer our question: “Who needs it anyway?” I’ll talk about Template Literal Types and we’ll explore more real-life use cases for them beyond the mentioned type-based SQL engine :) 👨🏫 Andrii Romasiun — Writing Secure JavaScript 👨🏫 In my speech, I want to talk about web security and how to write secure JavaScript. I will discuss how small bugs have opened huge vulnerabilities even in big companies like Google and Cloudflare. What are the common and uncommon vulnerabilities in JS full-stack applications (XSS, header poisoning, SQLi, clickjacking, directory traversal, RCE, open redirects, and more), with real-life examples, and how to detect, prevent, and mitigate such vulnerabilities. At the end, I'll give a short talk about how to set up a secure coding environment and why it's important (static code analysis, environment configuration, dependency management). 👨🏫 Przemysław Konefał — Simplicity in the Spectrum: Identifying and Overcoming Overengineering 👨🏫 One of the main pillars of maturing as a developer is mastering the skill of striking the right balance between underengineering and overengineering. This session aims to equip developers with a systematic approach to dealing with the latter. We'll explore the common reasons that drive developers to overshoot their solutions, particularly in the realm of frontend development. Then, we'll discuss the signs and in-code symptoms of unnecessary complexity. In the end, we'll dive into useful heuristics, mental models, and thought filters to refine our approach to project complexity, to find that sweet spot more consistently. Don't miss the opportunity to gain new knowledge and exchange experiences with other developers! Tickets are now available: https://lnkd.in/d3wy-w2z See you on July 10th! 🎉 #WarsawJS #Meetup #TechTalks #CodingCommunity

🚀 Hey WarsawJS! 🚀 Have you ever wondered how to speed up your product development while also increasing its quality? We have something that might interest you! 💡 📚 In the latest article on the monday.com blog, you will find a comprehensive guide to Agile Product Management. You'll learn how traditional, long-term processes can be replaced by agile methods that focus on rapid iteration and continuous improvement. The article includes practical examples, best practices, and the benefits of implementing Agile in product management. 🎯 What will you find in the article? 👉 What is Agile Product Management? 👉 Examples of Agile applications in real companies like Ericsson, Cisco, and Fitbit. 👉 Key benefits, including faster product market introduction, higher product quality, and greater customer satisfaction. 👉 Five best practices for Agile product managers. Don’t miss this opportunity to discover a new approach to product management and take your projects to the next level! 📈 📰 Article: https://lnkd.in/duBkYC7g Read and let us know what you think! 😊 #WarsawJS #Agile #ProductManagement

We've prepared a lecture from WarsawJS Meetup #115 for you, presented by Mieszko Sabo. The title of his talk is "Type level programming in TypeScript" 📹 In this presentation, Mieszko introduced the type system in TypeScript as an independent programming language. You'll see how types can be used to express mechanisms such as loops, functions, and conditional expressions, which we know from other languages. If you're curious about the amazing possibilities offered by the type system in TypeScript and how to fully utilize it in your daily work, be sure to watch this video! Enjoy! 🍿 🎥 Video — https://lnkd.in/dGunA7w3 Discover more fascinating talks at WarsawJS Meetup #116, which starts on July 10th. Reserve your ticket by clicking the link below 👇 🔖 Tickets: https://lnkd.in/d3wy-w2z #WarsawJS #Meetup #TypeScript #DevLife