JSJ 329: Promises, Promise.finally(), and Async/await with Valeri Karpov

JSJ 329: Promises, Promise.finally(), and Async/await with Valeri Karpov

Panel:
  • Charles Max Wood
  • AJ O’Neal
  • Aimee Knight
Special Guests: Valeri Karpov In this episode, the panel talks with programmer, Valerie Karpov from Miami, Florida. He is quite knowledgeable with many different programs, but today’s episode they talk specifically about Async/Await and Promise Generators. Val is constantly busy through his different endeavors and recently finished his e-book, “Mastering Async/Await.” Check-out Val’s social media profiles through LinkedIn, GitHub, Twitter, and more.Show Topics:1:20 – Val has been on previous episodes back in 2013 & 2016.1:37 – Val’s background. He is very involved with multiple companies. Go checkout his new book! 2:39 – Promises generators. Understand Promises and how things sync with Promises. Val suggests that listeners have an integrated understanding of issues like error handling.3:57 – Chuck asks a question.6:25 – Aimee’s asks a question: “Can you speak to why someone would want to use Async/Await?”8:53 – AJ makes comments.10:09 – “What makes an Async/Await not functional?” – Val10:59 – “What’s wrong with Promises or Async/Await that people don’t like it?” - AJ11:25 – Val states that he doesn’t think there really is anything wrong with these programs it just depends on what you need it for. He thinks that having both gives the user great power.12:21 – AJ’s background is with Node and the Python among other programs.12:55 – Implementing Complex Business Logic.15:50 – Val discusses his new e-book.17:08 – Question from Aimee.17:16 – AJ answers question. Promises should have been primitive when it was designed or somewhat event handling.17:46 – The panel agrees that anything is better than Call Backs.18:18 – Aimee makes comments about Async/Await.20:08 – “What are the core principles of your new e-book?” – Chuck20:17 – There are 4 chapters and Val discusses, in detail, what’s in each chapter.22:40 – There could be some confusion from JavaScript for someone where this is their first language. Does Async/Await have any affect on the way you program or does anything make it less or more confusing in the background changes?24:30 – Val answers the before-mentioned question. Async/Await does not have anyway to help with this (data changes in the background).25:36 – “My procedural code, I know that things won’t change on me because it is procedural code. Is it hard to adjust to that?” – AJ26:01 – Val answers the question.26:32 – Building a webserver with Python. 27:31 – Aimee asks a question: “Do you think that there are cases in code base, where I would want to use Promises? Not from a user’s perspective, but what our preferences are, but actual performance. Is there a reason why I would want to use both or be consistent across the board?”28:17 – Val asks for some clarification to Aimee’s question.29:14 – Aimee: “My own personal preference is consistency. Would I want to use Promises in ‘x’ scenario and/or use Async/Await in another situation?”32:28 – Val and AJ are discussing and problem solving different situations that these programs33:05 – “When would you not want to use Async/Await?” – AJ33:25 – Val goes through the different situations when he would not use Async/Await. 33:44 – Chuck is curious about other features of Async/Await and asks Val.36:40 – Facebook’s Regenerator 37:11 – AJ: “Back in the day, people would be really concerned with JavaScript’s performance even with Chrome.” He continues his thoughts on this topic.38:11 – Val answers the AJ’s question.39:10 – Duck JS probably won’t include generators.41:18 – Val: “Have anyone used Engine Script before?” The rest of the panel had never heard of this before.42:09 – Windows Scripting Host 42:56 – Val used Rhino in the past.43:40 – Val: “Going back to the web performance question...”47:08 – “Where do you see using Async/Await the most?” – Chuck47:55 – Val uses Async/Await for everything on the backend because it has made everything so easy for him.48:23 – “So this is why you really haven’t used Web Pack?” – AJ49:20 – Let’s go to Aimee’s Picks!50:18 – AJ’s story, first, before we get to Promises.54:44 – Let’s transition to Promises Finally.54:53 – Val talks about Promises Finally.59:20 – PicksLinks:Sponsors:Picks:CharlesAimeeAJVal

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Interactive Coding Tutorials with Tomek Salkowski: Enhancing Developer Experiences - JSJ 651

Interactive Coding Tutorials with Tomek Salkowski: Enhancing Developer Experiences - JSJ 651

AJ and Steve dive deep into the world of interactive coding tutorials alongside guest, Tomek Sułkowski. They kick off with a brief chat about the weather before delving into Tomek's expertise in creating engaging and interactive tutorials—shedding light on everything from the history of coding tutorials to the technical wonders of web containers, brought to prominence by platforms like Stackblitz.They explore the innovative "tutorials kit dot dev," a revelatory tool for developers, and discuss the triumphs and challenges in building these interactive learning experiences. Plus, discover amazing tech insights from AJ, development updates from Tomek, and a whole lot more. SocialsLinkedIn: Tomek Sułkowski PicksAJ - Rocky Mountain ATVAJ - pg-essentialsAJ - SSH now has IncludeAJ - DeepSeek-Coder-v2Tomek - Component partyTomek - IconesBecome a supporter of this podcast: https://www.spreaker.com/podcast/javascript-jabber--6102064/support.

1 Loka 202457min

Optimizing SQL and ORM Practices for High-Performance Applications - JSJ 650

Optimizing SQL and ORM Practices for High-Performance Applications - JSJ 650

In today's episode, Charles, Steve, and AJ, are joined by back-end engineer and team lead at Homebound, Stephen Haberman. We delve into the fascinating world of SQL c and its revolutionary approach to managing SQL queries with dedicated SQL files, delivering benefits such as reduced typing errors and pre-deployment checks. Stephen also walks us through the advantages and limitations of ORMs versus query builders like Prisma and Drizzle, sharing insights into Joyce ORM's unique philosophy and simplified CRUD operations.They explore the intricacies of Domain Driven Design (DDD), its emphasis on ubiquitous language, and how it shapes business logic and storage management. AJ contributes by discussing the potential of SQL c and Slonik for dynamic query building. Additionally, they discuss Steven's innovative work with GraphFileWorker and GrafAST, highlighting the performance improvements in GraphQL backends. Whether you're intrigued by the technicalities of ORMs, the evolution of database tools, or just love a good anecdote, this episode packed with technical insights and lively discussions is one you won't want to miss. Join them on this journey into the world of database management and development!SocialsLinkedIn: Stephen HabermanPicks AJ - TypeScript to JSDocAJ - MySQL to TypeScriptAJ - sqlcAJ - Slonik (Node + Postgres)AJ - SwiftUI EssentialsAJ - Introduction to SwiftUI AJ - Trump, but not saying dumb thingsCharles - Biblios | Board GameCharles - FreeStyle Libre 3 System | Continuous Glucose MonitoringStephen - Grafast | GrafastBecome a supporter of this podcast: https://www.spreaker.com/podcast/javascript-jabber--6102064/support.

24 Syys 20241h 31min

Mentorship in Tech: Balancing Professionalism and Friendship for Maximum Growth and Accountability - JSJ 649

Mentorship in Tech: Balancing Professionalism and Friendship for Maximum Growth and Accountability - JSJ 649

They dive deep into the world of mentorship, personal growth, and problem-solving with our special guests, Joao and Manny, alongside our insightful panelists, AJ and Charles.In this episode, they explore the transformative power of weekly accountability meetings (WAM), where tasks are committed and followed up with a yes or no, no excuses allowed. Joao and Manny share their journey of mentorship that crossed borders, forging a strong bond through adversity and mutual respect. We'll also delve into how their dynamic friendship amplifies professional standards, and the importance of balancing personal and professional relationships.We discuss the profound impacts of structured problem-solving methods, specifically George Polya's renowned four-step process. Joao and Manny highlight how this systematic approach has refined their coding skills and overall problem-solving abilities. Alongside, we touch upon the fascinating intersection of human learning and AI, emphasizing the unique capacity humans have for generalizing new problems from limited data.In addition, our speakers will share their roadmap for continuous learning, curriculum development, and practical exercises—highlighting tools like Trello for task management and Anki for reinforcing learning. AJ O'Neil offers his unique perspective on the talent it takes to thrive in programming and how personal enjoyment is crucial for sustained success.Later, we'll transition to our Picks section, where AJ, Charles, and the guests share their latest recommendations, from essential productivity tools and engaging books to top-notch apps and board games.Finally, we'll wrap up with some valuable insights on time management, consistent study habits, and the importance of finding a mentor who truly cares about your growth. Whether you're a seasoned developer or just starting out, this episode is packed with practical advice and inspiring stories that you won't want to miss. So, tune in for all this and more on Top End Devs!PicksAJ - Apple EarpodsAJ - SwiftUICharles - Biblios | Board GameCharles - FreeStyle Libre 3 SystemManny - Jaco: The Extraordinary and Tragic Life of Jaco PastoriusManny - Baldur's Gate 3 on SteamBecome a supporter of this podcast: https://www.spreaker.com/podcast/javascript-jabber--6102064/support.

17 Syys 20241h 19min

Unpacking Deno 2: Code Stability, Free Speech, and more - JSJ 648

Unpacking Deno 2: Code Stability, Free Speech, and more - JSJ 648

Today, Charles, Dan, AJ, and Steve dive into a range of fascinating discussions. Joining this episode is special guest, Ryan Dahl, the visionary creator behind Node.js and Deno.In this episode, they traverse an eclectic mix of topics, from humorous offbeat news and dad jokes to in-depth tech discussions. They explore the complexities and legalities surrounding free speech, offering diverse perspectives on its implications in the modern digital landscape.But the heart of our discussion is Ryan Dahl's exploration of Deno 2, the latest evolution in JavaScript's runtime environment. You'll hear about its distinctive features, including the revolutionary JSR project, and how it aims to simplify and secure modern JavaScript development, addressing challenges and limitations found in Node.js. They also discuss the intricacies of TypeScript support, Deno’s security model, and the future potential of JavaScript in data science.Join them for a lively conversation packed with insights, technical deep-dives, and plenty of humor. Whether you're a seasoned developer or just starting your coding journey, this episode is sure to offer valuable takeaways and an entertaining ride through the world of modern web development.Sponsors Wix StudioSocialsLinkedIn: Ryan DahlTwitter: @deno_landDenoPicksAJ - SwiftAJ - DenoCharles - Challengers! | Board GameRyan - GrainBecome a supporter of this podcast: https://www.spreaker.com/podcast/javascript-jabber--6102064/support.

10 Syys 20241h 34min

Opinionated Core Web Vitals - JSJ 647

Opinionated Core Web Vitals - JSJ 647

Dan Shappir takes the lead this week to discuss Core Web Vitals and how Google is pushing the web to be faster.He leads Chuck, Aimee, and AJ through the ways that developers can measure and improve the performance of websites based on the statistics specified by Google as components of Google rankings.Sponsors Wix StudioLinksWeb VitalsPicksAimee- GitHub | treosh/lighthouse-ci-actionAimee- GitHub | GoogleChrome/lighthouse-ciAJ- Classless CSSAJ- One FinanceAJ- JCS - Criminal Psychology - YouTubeAJ- Auth Library Live StreamCharles- Atlas Shrugged Charles- Dev Influencers | Devchat.tvDan- Core Web Vitals Technology ReportDan- Math Has a Fatal Flaw - YouTubeBecome a supporter of this podcast: https://www.spreaker.com/podcast/javascript-jabber--6102064/support.

3 Syys 20241h 10min

Beyond JavaScript: Master TypeScript at Scale at SquiggleConf  - JSJ 646

Beyond JavaScript: Master TypeScript at Scale at SquiggleConf - JSJ 646

Dan together with Josh Goldberg, a prominent open-source maintainer and author of "Learning TypeScript, dive into the world of TypeScript and JavaScript with a special focus on the upcoming Squiggleconf. In this episode, they'll detail the conference format, including its dedicated days for talks and workshops, and highlight the impressive lineup of speakers who will cover topics like ASTs, TypeScript at scale, and essential documentation practices.Josh also shares insights into the evolution and practical application of TypeScript ESLint. Expect a deep dive into TypeScript's latest features, such as generics and specific lint rules that enhance code quality and developer experience.SocialsLinkedIn: ‌Josh ‌GoldbergPicksDan - Dan's favorite standalone fantasy booksDan - Despicable Me and MinionsJosh - NeuromancerJosh - WitcherBecome a supporter of this podcast: https://www.spreaker.com/podcast/javascript-jabber--6102064/support.

28 Elo 20241h 10min

Deep Dive into Metrics and Monitoring with Prometheus and Grafana - JSJ 645

Deep Dive into Metrics and Monitoring with Prometheus and Grafana - JSJ 645

Dive into a fascinating discussion blending the worlds of literature, gaming, and tech. In this episode, Chuck and Dan explore the intriguing connections between The Hobbit and The Lord of the Rings, including an extraordinary tale about Israeli pilots translating The Hobbit during wartime. They share insights into Guy Gavriel Kaye’s standalone novel Tigana, inspired by Renaissance Italy, and discuss the complexities and strategies of board games like Monopoly and Letters from Whitechapel.But that’s not all. The episode takes a technical turn as the speakers delve into the dynamic world of application monitoring with Prometheus. They unpack the mechanics of event loop lag, heap usage, and GC storms, and share how Prometheus's query language (PromQL) and integration with Grafana can proactively manage and solve performance issues. Hear about real-time alerting, sophisticated querying, and the practical applications of these tools in companies like Next Insurance and Sisense.This episode is packed with information - from managing performance metrics and alerting systems to insightful discussions on favorite standalone fantasy novels and the productivity hacks that keep our hosts on top of their game. So, sit back and join us for an engaging and informative session on Top End Devs!SocialsLinkedIn: Chuck WoodLinkedIn: Dan ShappirPicksCharles - Letters from Whitechapel | Board GameCharles - TrainingPeaks | Empower Your TrainingBecome a supporter of this podcast: https://www.spreaker.com/podcast/javascript-jabber--6102064/support.

20 Elo 20241h 25min

Crafting Code and Community: AI, LeetCode, and Meetups - JSJ 644

Crafting Code and Community: AI, LeetCode, and Meetups - JSJ 644

In this episode, they dive deep into the world of coding, meetups, and the evolving landscape of technical interviews. Join them as they explore the fascinating use of OpenAI's technology for coding assistance, the challenges of setting up impactful meetups, and the intricacies of mastering LeetCode problems.Our experts share invaluable insights—from leveraging AI tools like GPT to generate code effectively, to the essential strategies for problem-solving during high-pressure technical interviews. They also touch on the importance of deliberate practice, group support, and finding the right mindset for tackling coding challenges. Plus, hear personal stories about the benefits of taking breaks, the role of LeetCode in honing coding skills, and the shift in interview styles towards speed and pattern recognition.Sponsors Wix StudioSocialsAnatoliy D. ZaslavskiyLinksNYC LeetCode SquadPicksAJ - Yumi and the Nightmare Painter by Brandon SandersonAJ - The ChosenAJ - Beauty & The BeatAnatoliy - Authentic relatingAnatoliy - Neurodivergent Guide to the WorkplaceCharles - Challengers! | Board GameSteve - Myspace celebrates its 21st birthday. Do we still need it?Become a supporter of this podcast: https://www.spreaker.com/podcast/javascript-jabber--6102064/support.

13 Elo 20241h 9min

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