WarsawJS

We have a great article from our sponsor, Callstack, that is sure to appeal to all web3 and React Native fans 👍 In the article "Testing Expo Web3 Apps With Wagmi and Anvil," you will learn how to set up and test your web3 applications using Wagmi and Anvil. The article presents best testing practices, when to use mocks, and how to create reliable and independent tests. This is a great opportunity to expand your knowledge and skills in the field of web3 application testing. Don't miss it! Enjoy the read! 📖 📰 Article: https://lnkd.in/d7RiHUmF #WarsawJS #Callstack #ReactNative #Web3

Join us for WarsawJS Meetup #117 on August 14th at BEC Poland! Robert Pasiński, Jerzy N., and Inez Okulska, have prepared fantastic talks for you. The program also includes interesting lightning talks and networking opportunities. Don't miss this event! 👥🎇 Sponsors 💰 ➛ BEC Poland — https://www.bec.dk/poland/ ➛ Callstack — https://www.callstack.com ➛ CampusAI Poland — https://campusai.pl ➛ monday.com — https://monday.com ➛ Xfaang — https://xfaang.com #WarsawJS #Meetup #TechEvent #Community

We are delighted to invite you to watch the recording of WarsawJS Meetup #115, where Szymon Mentel shared his knowledge on building multi-tenant applications 🎬 Szymon discusses the challenges of multi-tenancy and presents an incredibly interesting approach to the topic. His presentation "Multi-tenant apps with single-tenant SQLite databases in global Tigris buckets" covers not only technical details but also offers an innovative perspective on the architecture of homogeneous Node.js servers, Fly Machines, and Tigris buckets. We invite you to watch and explore new possibilities! Enjoy the viewing! 🍿 🎥 Video — https://lnkd.in/dyzmBtgM On July 10th, WarsawJS Meetup #116 will start with a new dose of inspiring talks. Don’t miss the opportunity and book your tickets by clicking the link below 👇 🔖 Tickets: https://lnkd.in/d3wy-w2z #WarsawJS #Meetup #NodeJS #TechTalk

📢 This is your last chance to get tickets for WarsawJS Meetup #116! 📢 Tomorrow, July 10th, we invite you to the Paramount office for the special WarsawJS Meetup #116. The program includes fascinating talks, delicious food, refreshing drinks, and great networking opportunities. The event will be hosted by the amazing Barry Solone, who will ensure an unforgettable atmosphere 🎇 📅 Agenda: Full talks ⏲️ ► Michał Michalczuk — TypeScript Template Literal Types - Who Needs It Anyway? ► Andrii Romasiun — Writing Secure JavaScript ► Przemysław Konefał — Simplicity in the Spectrum: Identifying and Overcoming Overengineering Lightning talks ⚡ ► Iga Trydulska — How LLMs Influence the Gender Bias Portrayed in the Media? ► Sebastian Kudron — ??? Don't wait, buy your ticket now: 👉 https://lnkd.in/d3wy-w2z 👈 See you there! 🚀 #WarsawJS #Meetup #Programming #TechEvent

WarsawJS Meetup #116 without interesting lightning talks? That can't be! So let's introduce the first one 🎊 The first lightning talk will be given by Iga Trydulska — fashion journalist, researcher at K MAG. Iga is a journalist and researcher working at the intersection of fashion and technology. Since 2022, she has held the position of Fashion Editor-at-Large at K MAG Magazine. Her research areas include ethical AI development, creative coding, and gender studies. She is an alumna of London College of Fashion and the Creative Computing Institute (UAL). What will she be presenting for us? ⚡️ How LLMs influence the gender bias portrayed in the media? ⚡️ AI development is unlikely to stop in the near future; however, even at this stage, many instances of sexism can be seen in the products created by generative AI models. The talk will explore how potentially discriminating data is present both in the input and the output of neural networks: from databases to the structure of the layers themselves (for example - working on datasets which are formed by scraping data off websites such as Reddit or Wikipedia, which have a predominately male demographic). Key terms will be defined, and AI developments will be placed in a wider context, which also includes new retouching techniques. Finally, possible answers to this problem will be offered, keeping in mind that many solutions - such as increasing computational power or the dataset size - result in the apophenia phenomenon; increasing societal visual literacy will be presented as a possible way forward. (This is a run-through; I can write a more engaging description for a website, this is for you to check if it is interesting) Social media 🖱 ➛ https://lnkd.in/dzvYmcwX  ➛ https://lnkd.in/du8EDv2p  ➛ https://lnkd.in/du8EDv2p  ➛ https://lnkd.in/dbQqaQAU 🔖 Reservation — https://lnkd.in/d3wy-w2z 👉 Livestream — https://warsawjs.com/live Iga Trydulska will be speaking on Wednesday, 10.07 at 18:30 🕡 at our Meetup. You can't miss it! 🎉 #WarsawJS #Meetup #AIDevelopment #TechInFashion

For the third presentation at WarsawJS Meetup #116, it's worth staying until the end. We guarantee you won't be disappointed! 👍 The third to take our stage will be Przemysław Konefał — Lead Frontend Developer at Neuraum Ventures GmbH. Przemysław has a business-oriented mindset and over 6 years of commercial experience. As a T-shaped developer, he is familiar with backend development, DevOps, and data work. He specializes in Web Vitals and website performance optimizations. A philosopher by passion, sports are his second nature. So, what will he share with us? 👨🏫 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. Social media 🖱 ➛ https://lnkd.in/dxJ3s7pg ➛ https://lnkd.in/di4dz7ph 🔖 Reservation — https://lnkd.in/d3wy-w2z 👉 Livestream — https://warsawjs.com/live Przemysław Konefał will be presenting on Wednesday, 10.07 at 18:30 🕡 at our Meetup. You can't miss this! 🎉 #WarsawJS #Meetup #FrontendDevelopment #WebPerformance

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