Advanced JavaScript

5 days ago

The humor, wit, and overall professionalism make learning so much more enjoyable. Also, these guys seem to "dot every i" when it comes to the core concepts required to build something great. I wouldn't recommend another software development course for those looking to break into modern web development. Great work.

query.gg

7 days ago

Great course! I have been using react-query already before taking it but it really helped to understand it even better and to learn about some features i haven't used yet.

query.gg

11 days ago

Catching up on React and React Query after a long pause (last time l used React was with class components), and I now feel totally ready with your precious mental models. It's also very cool to know that l've studied the architectural best practices, and problems I can encounter in the wild. Thank you for this great course!

Advanced JavaScript

13 days ago

This is an amazing course, and topics are touched on at an incredible level. I give a huge respect to the "JavaScript Visualizer" tool. So much work was put into it. Also, the inheritance topic was explained really well. Quizzes after each topic cover the crucial nuances. I liked them so much. This course is definitely worth spending time on.

Modern JavaScript

16 days ago

This course was definitely worth spending time on. After completing it, I feel as if I closed some JS gestalts. My favorite topic was about the Promises. After completing it, I went to solve some JS problems on LeetCode, and it was so easy to understand and solve them. I especially appreciate that you have added text descriptions to every topic, and they are also very clear. I loved this course and 100% will recommend it to others.

query.gg

27 days ago

Fantastic course! It contains everything you may need about React Query.

React Router

28 days ago

Good, learnt some interesting stuffs

query.gg

33 days ago

Unusually lot of practice and very good explanations.

query.gg

38 days ago

Used TanStack Query for years but this course still took me to school. Helped me with a deeper understanding and directly improved my use of it at work.

react.gg

38 days ago

Its a great course, I have been using React by about one and a half years, and if I have take this course before, it would have been a lot more easy to work with React, I learnt ways to avoid bugs and to make simplier and performant. Thanks 😁

react.gg

39 days ago

Love all ui.dev material, you guys are the best

react.gg

41 days ago

Up until now I was never sure I was using React the correct way. I learned a lot and am now confident on how to approach it correctly.

react.gg

42 days ago

I like how courses is designed and developed explaining each topic in great details. It is self paced in true sense . Each challenge is a thoughtful nugget. It develop insight and mental model while solving challenges. A true masterpiece !

query.gg

42 days ago

I just completed Query.GG, a course on react-query. This course has been the best that I've taken so far. It has video content, text content and interactive examples! The quizzes are standard part of other course providers but the challenges on top were a lot of fun! I would without hesitation recommend it to anyone wanting to learn more about react-query and they also offer other course topics/content!

query.gg

43 days ago

For lazy people like me :p that not enjoy read the docs this course is perfect to embrace all the features that React Query offers to manage asynchronous state. I hope apply this knowledge in the projects I'm working on. Awesome content btw!

query.gg

43 days ago

Wow! What a fantastic course. Compared to all the less expensive competition that I've used, such as Udemy, it's well worth the price. There are interactive examples! You can view the course as a video or in text. The quizzes are a great way to recall what you've just learned and the challenges were fun! Thank you so much for providing such a lovely course experience.

React Router

44 days ago

React Router Course The course is well explained, with good documentation and video support. I especially liked the progressive project: starting it together and then improving and modifying it after each lesson or new topic made the course both engaging and useful.

query.gg

45 days ago

Never thought I could dig this deep in a simple query library. I can only encourage people to take the training in order to produce better quality code.

Modern JavaScript

46 days ago

This course explores in details the listed topics. There are JavaScript concepts that are used very often but are poorly explained, in a very complicated way. In this course, however, they are explained in a clear and effective way.

react.gg

51 days ago

Precise and perfectly paced. It kept me at just the right level of discomfort, the kind where you know you’re being challenged and truly learning a lot.

react.gg

53 days ago

This React course was exactly what I needed to refresh my fundamentals. The instructors explained everything in a way that was clear, easy to digest, and never overwhelming. I especially appreciated the in-depth video lessons paired with the interactive elements—it made the learning experience both engaging and practical. Overall, it really helped me solidify my understanding and rebuild confidence in React. Highly recommend!

Advanced JavaScript

57 days ago

Advanced JS course was just what I was looking for as a seasoned JS developer! I've already knew and used a lot of concepts but I didn't understand how it worked behind the scenes. Now I do :)

react.gg

58 days ago

This react course is absolutely amazing 🚀

query.gg

59 days ago

Query.gg far exceeded my expectations and completely changed how I approach problems at work. I learned so much more than I ever imagined, and Tyler’s method of reading first, then watching the videos, followed by quizzes and challenges, really makes the knowledge stick. Dominik was also incredibly helpful throughout. This course is packed with value and I highly recommend it.

react.gg

2 months ago

I found the UI.dev course extremely helpful. The lessons are clear, well-structured, and practical, combining both theory and hands-on examples. It significantly improved my understanding of modern JavaScript and React, and I feel much more confident applying these concepts in real projects. Highly recommended for anyone looking to strengthen their front-end skills!

query.gg

2 months ago

This course gave me a deep understanding of TanStack Query and all its features. I now see the full power of this tool and how effectively it helps track the status of asynchronous external systems. I’ll be adding it to my Next.js boilerplate as one of the core packages. Thank you for this excellent course!

query.gg

2 months ago

This course is the most complete and intuitive extension to the docs. All lessons explain the concepts in a simple, engaging way, with a lot of DX QoL tips and tricks that make using React Query 10x better (and I didn't know it was possible). It also makes it super easy to apply those small or large changes to existing code as you go, ensuring the best experience to all

Advanced JavaScript

2 months ago

great course, will help me catch future bugs in code I believe with a deeper understanding of the JS fundamentals that make the language tick

query.gg

2 months ago

Best online course for react Query by far.

react.gg

2 months ago

The decision to have a lot of the sections be challenge based really cemented a lot of these React concepts. I really feel like this course levelled up my react skills massively - big thanks to the team for putting it together. (Would be nice to have lifetime access to the course though after paying for it instead of only having access for 1 year)

react.gg

2 months ago

Learned new things even as an experienced React developer. I loved the rebuilding React hooks exercise, it gave me an opportunity to actually apply what I learned.

react.gg

2 months ago

This course goes into so much depth and gives me a whole different perspective about React even after using it for many years. It was such a fun course to complete, thank you!

Advanced JavaScript

2 months ago

Some content overlaps with modern JavaScript course, but the final bonus video to implement your own array in JavaScript clarify a lot of concepts for Prototype that was key for ES5 and is more intuitive in ES6.

react.gg

2 months ago

The approach is fantastic, with a clear and simple way of learning, always encouraging us to rethink how we build our components and guiding us to consider how to refactor them in a way that respects all React principles and applicable design patterns.

query.gg

2 months ago

I’ve learned advanced topics that I hadn’t seen before. I was exhausted with beginner tutorials, but these courses saved me. I feel that the gaps in my knowledge were filled during the course. I completed all the React, Modern JavaScript, Advanced JavaScript, and React Query courses in a row—and thoroughly enjoyed them. Preparing these courses must have taken an incredible effort. Huge thanks to the team!

react.gg

2 months ago

This course gives in-depth explanations of many of the newer(ish) react features which is just what I needed to get back up to speed on this ever-changing library

react.gg

3 months ago

I love the first principles approach and the pragmatic ready-to-use knowledge. Also I love the discount for being mexican, I couldn't afford it without it

Advanced JavaScript

3 months ago

This was a nice refresher

react.gg

3 months ago

The best thing by far is the presentation. Loved how you explained all the concepts. As places to improve, it felt like I did some of the challanges correctly, but the tests still didn't pass. Also I'd have liked to have more content on client / server components. Maybe also a guided project app at the end All in all great course. I'll recommend it to my peers as well!

query.gg

3 months ago

Superb course! Tanstack Query solves some of the most fundamental challenges of modern web development, and this course did an excellent job explaining what those challenges are, why they are important and how to tackle them effectively.

React + TypeScript

3 months ago

Great, just great. I love that this course explains concepts

react.gg

3 months ago

The focus on teaching the fundamentals was what excited me most. It's a work of art, better than the official documentation, incredibly good, and helped me understand the fundamentals of React.

react.gg

3 months ago

Very nice course even if i'm not a FE dev at all. I know basic JS, Im coding in TS in my job, but sometimes i can say it was a bit tough to figure out the challenges, I was not able to completed 30-40% of them, I had to look at the solution. What i found confusing for now, is what to use and when, but it will come with practices. thank you !

query.gg

3 months ago

Learned so much in the scaling section.

Advanced JavaScript

3 months ago

ya ya ya so many teach basic javascript but they're all like simple code-alongs that don't explain much. this course really cleared up some of the more bizarre concepts and i'm so glad.

query.gg

3 months ago

I learnt not only about the framework specific, but also about how to interact with the server from the client.

react.gg

3 months ago

Taken multiple courses. None like this. Loved the challenges approach with the integrated environment. I feel like I finally understand React

Modern JavaScript

3 months ago

waugh! i liked it a lot! would love if there were more modern features (like nullish coalescing) for example.

react.gg

3 months ago

If you love finding out WHY things works and to do so in an incremental way, react.gg is the way!!!

react.gg

3 months ago

I love the easy to go teaching style with humor. Also, the quizzes and challenges instill the teachings nicely.

Advanced JavaScript

3 months ago

I like this course because its interesting lessons, thank you very much for it

Classic React

3 months ago

The course was pretty nice

query.gg

3 months ago

This course is a gemstone that I wish I knew about earlier!

query.gg

3 months ago

I have already been developing with react for a few years and have used RQ before; however after this course feel like I have a completely new understanding of it. The course has some very engaging techniques in teaching this content, I have thoroughly enjoyed this course.

react.gg

3 months ago

Thanks to the creators. This is the best course I've ever gone through.

TypeScript

4 months ago

Absolutely touched grass in this typescript course, it's crazy awesome. And thank you.

Modern JavaScript

4 months ago

Interesting and compact course with good explanations of ES6 features

Advanced JavaScript

4 months ago

Very useful to pull back the curtains on some of the behind-the-scenes of JavaScript. As a newer developer that started after the release of ES6, it is fascinating to learn the why and how behind some of the nice abstractions we have now.

query.gg

4 months ago

Query.gg was amazing! Love the courses the team has put together at ui.dev. I did their JavaScript, TypeScript, and React courses two years ago and still refer back to my notes!

react.gg

4 months ago

React.gg is interesting and beautifull (the styles, fonts and pictures), I like the animations which tried to give me some new mental models (maybe they had success, I don't know for a while) I hope the knowledges that I 've took from this course help me to get new much better live, but if not - thank you for it anyway

query.gg

4 months ago

I loved the demystification of the library: creating a version of TSQ to see what's happening under the hood. I really liked the variety of real-life scenarios we got the explore! I learned a lot and I think I got a pretty solid grasp on TSQ's philosophy, so reading docs from now on should be a breeze! One thing that's missing is some discussion of TS (I think it warrants at least a chapter for some real life examples) and maybe some more complex cases for mutations, e.g. with `mutateAsync`.

react.gg

4 months ago

A very good course, many exercices to try harder and harder, cristal clear explanation. Esay to use spacework UI

query.gg

4 months ago

Very practical course, was able to apply what I was learning to our codebase immediately. Does a great job of establishing how React Query works behind the scenes so that you can get the most use out of it for your particular use case.

query.gg

4 months ago

React Query has been part of my daily workflow for a while now, but this course really helped me use it more effectively. The challenges actually helped solidify the concepts and they're practical and directly applicable to real work. The course structure does a great job of building up from the basics without making it feel slow for those who already use React Query. Definitely worth it if you want to go from just using it to actually mastering it.

Advanced JavaScript

4 months ago

Love the advanced javascript course going through all the history lessons on how we ended up where we are and why we do things certain ways. Very valuable knowledge to have!

Modern JavaScript

4 months ago

So far this course has been fantastic! I appreciate the forward thinking of each lesson as well - showing the "why" behind concepts and how these tools are applicable in later phases is key.

react.gg

4 months ago

Just finished react.gg! Learnt a lot in a short period of time.

Classic React

4 months ago

Learned a lot about React router and reinforced some concepts from other courses.

react.gg

4 months ago

It is gooddddddddddddddddddddddddddd

react.gg

5 months ago

Building useHooks was a lot of fun, and a great way to practice what you've learned throughout the course. Explanations were clear, and the challenges do a good job of putting you in a "real world" use case for the module. Definitely recommend for anyone trying to get up to speed in React without having to fumble around aimlessly.

react.gg

5 months ago

React.gg was phenomenal! It establishes a solid mental model and core understanding of React's inner workings. It builds lasting and highly applicable knowledge. Before this course, I took another React course on a major e-platform, built a couple small off-platform projects, and literally a couple months later completely forgot all the material. The "why" behind the "how" in React.gg has made a huge difference.

query.gg

5 months ago

Just finished react.gg. Wow. The course is a masterpiece. Learned a lot, even after years of developing on React. Thank you 🙏

react.gg

5 months ago

Just finished the course and I have to say this is complete react course anyone who is interested in learning about react should do this course it's detailed, readable and if you don't want to read you can watch and listen! God job and thank you!

React Router

5 months ago

Learned some interesting aspects of routing and navigation that I'd used before but haven't fully understood.

Redux

5 months ago

I didnt have enough time to enjoy it but I've learnt a lot o7

query.gg

5 months ago

This is one of the best investments I've ever made! The course is truly covered every aspects of react-query! The team did an amazing job with the course!

react.gg

5 months ago

I've learnt a lot, it was worth the price :)

react.gg

5 months ago

Fantastic course, great explanation of how React works, and lots of challenges to work through.

query.gg

5 months ago

I love part about cancelling requests.

query.gg

5 months ago

This course is with it's weight in gold and came at the perfect time for me. We are migrating a large app from react-query v3 to v5. Not only do I feel more confident with the migration I now have the a super high level of comfort in my ability to move our app away from some suspect pattens and really leverage all the power of react-query. Thanks for this fantastic course!!!

TypeScript

5 months ago

Loved having everything laid out in an easy-to-understand order. Plus extra info like Babel support will be very handy!

query.gg

5 months ago

I loved the whole course, It is well designed starting from the very basics and going through each topic with a lot of examples, a project to learn too. The projects were very well structured too.

React + TypeScript

5 months ago

Learned a fair bit about contexts and refs that I didn't know before.

Redux

5 months ago

I liked how there was a lot of hands-on application development in this course compared to the rest of react.gg, will have to go back and review frequently.

Modern JavaScript

5 months ago

Loved the Modern JavaScript course! Was a good refresher on common topics in JavaScript, but also very relevant towards the history of JavaScript and it foundation till now. The learning concepts were informative and comprehensive. Again, great course to complete in a couple of days👌!

query.gg

5 months ago

Definitely had a lot of takeaways and ideas for applying in my work!

react.gg

5 months ago

Really love the combination of theory + challenge, plus a level of detail that actually made me better understand react much much better.

query.gg

5 months ago

These courses are hands-down the best way to master React Query. I’ve completed both react.gg and query.gg and gained deep, practical insights into not just how things work, but why they work that way. I recommend them to engineers at all levels—after all, you’re never too experienced to learn something new!

query.gg

5 months ago

I liked how it helped reinforce knowledge I knew about suspense, zod, useQuery, mutations, and other aspects I use in my career regularly.

react.gg

5 months ago

An absolute masterpiece. Explanations are simple but effective, with relevant examples.

query.gg

6 months ago

I truly enjoyed react-query course. It was well structured and gave a really good understanding of the subject.

react.gg

6 months ago

very challenging, thanks!

react.gg

6 months ago

This course was absolutely fantastic! You can really tell how much passion and effort the team put into creating it. The content was clear, well-structured, and super engaging. I learned a lot and actually enjoyed the process, which is rare for online courses. Thank you for making such a high-quality resource — I would definitely recommend it to anyone looking to level up their skills!

react.gg

6 months ago

A great course for brushing up on your react skills. Learnt a lot about the rendering cycle and love how the course makes you interact with real life examples. It's the best way to learn!

query.gg

6 months ago

I really liked the course, the quizzes at the end of each lesson were very useful.

query.gg

6 months ago

I really like how the course was structured and the fact that it had both videos and text examples to revise the topics.

query.gg

7 months ago

I absolutely loved every bit of this course! Not only did I gain an in-depth understanding of TanStack Query, but I also picked up valuable best practices along the way. The quizzes and challenges were a fantastic way to reinforce what I learned. Hands down, the best course I’ve taken so far—thank you!

query.gg

7 months ago

The team is undertaking the substantial task of refactoring the company's legacy application. We are employing Next.js and RQ, among other backend tools. I am pleased to have gained significant working knowledge from this course, and I am eager to it in practice. Excellent work and thank you.

react.gg

7 months ago

Super in-depth dive into React. In general, one of the best courses I took. Cannot recommend this course enough! gg wp <3

query.gg

7 months ago

I really enjoyed the React Query course! The combination of theory, questions and practices really worked well.

react.gg

7 months ago

Just wrapped up react.gg — and honestly, it exceeded expectations. The course doesn’t just teach React; it reshapes how you think about building apps. Even with a solid background in React, I found myself pausing often to take notes or rethink patterns I’d taken for granted. The mix of practical challenges, deep dives, and just the right amount of theory makes it incredibly engaging. You’re not just learning what to do — you're learning why it works. Massive kudos to the creators 🙌

TypeScript

7 months ago

loved the typescript course how to it went fro basic to next level. The only thing is it has to be updated based on new typescript features.

query.gg

7 months ago

Awesome course, loved the fact that there you can go through the couse through text or video. Also, loved the interactive exercise really cemented the learning.

react.gg

7 months ago

The comedy is an exquisite touch.

react.gg

7 months ago

Just finished react.gg and I have enjoyed it.

react.gg

7 months ago

Very great teaching. I learned how to effectively use different hooks and how React life cycle works

query.gg

7 months ago

Although I had been using react-query for some time, this course has helped me to get to know it better and to be able to use it in depth.

react.gg

7 months ago

It was an incredible course to learn about the core implementations of React, great content and experience.

react.gg

7 months ago

One of the best courses I've taken on React. I liked the hooks quiz questions at the end which really made me understand how a library is built.

query.gg

7 months ago

I recently finished query.gg. Besides having a lot of experience with React Query, this course helped me to click some concepts that I've missed. It also contains a ton of content that even if you're a seasoned React Query developer you'll end up learning something.

query.gg

8 months ago

This is the best programming course I've ever taken. I love the format, it's really intuitive, and you can choose if you want to see videos, you got them, you also got the audio and the transcriptions if case you prefer to read. Everything is explained from 0 with great examples, and also, it doesn't only explain how to use or apply React Query, but also how was it built and how does it work behind the scenes.

query.gg

8 months ago

Just finished query.gg—the theoretical part is put together, explained, and delivered absolutely brilliantly. The course provides a clear understanding of what React Query is, why it’s needed, and how to use it most effectively. A few minor issues—really wished I could open videos in full screen with a double click. Also, I often had to reload the page after it had been inactive for some time. Plus, there were some issues submitting certain challenges, but they eventually resolved themselves.

query.gg

8 months ago

You all did such a great job with this course! I would highly recommend this to anyone who is just getting into React Query or looking to expand on their current understanding.

react.gg

8 months ago

It's amazing! I managed to understand the fundamentals and this gave me the confidence to explain the core features of React!

query.gg

8 months ago

The course is very easy to follow, making it accessible even for developers new to React Query. It covers all the essential topics needed to confidently apply React Query in a production-ready project. I appreciated how it starts from the fundamentals, ensuring a solid foundation before diving into more advanced concepts. Highly recommended for anyone looking to master data fetching and state management with React Query!

Modern JavaScript

8 months ago

It was great learning about some of the history, meaning, and how we got to this point in Modern Javascript, which results in a deeper understanding of why things work the way they do. Excellent course, can recommend!

query.gg

8 months ago

Good way of putting content, great structure and pinch of humor

Modern JavaScript

8 months ago

I just finished the modern javascript course and it was incredibly insightful, confident to move on now.

query.gg

8 months ago

I'm so happy that I took this course. It's really good; I'd be coming to it again and again to reference later. So grateful to the course creators.

query.gg

8 months ago

Really in depth stuff. Will definitely be going back to this for reference.

react.gg

8 months ago

Great course! Starting easy and then becoming really tricky, with lots of funny exercices

query.gg

9 months ago

Great course & I love it

query.gg

9 months ago

This course was packed with useful insights and practical tips for using React Query effectively, it helped me uncover the depth of React Query’s capabilities, from performance optimizations to handling offline scenarios. Highly recommend it!

react.gg

9 months ago

Excellent course! Provides a strong foundation.

Modern JavaScript

9 months ago

Just finished the Modern Javascript course. It was a nice journey, but I'm even more happy to start the react.gg with the challenges.

Modern JavaScript

9 months ago

Excellent pacing; thanks for curating the content to focus on javascript specific concepts, rather than basic programing. Only critique is that I wish there were enough quiz question to preserve the effectiveness of each quiz after multiple attempts. I'd like to understand, not memorize. Anyway, great class!! thanks so much for putting it together. PS: See comment earlier about the term "Compile" vs "Transpile"

query.gg

9 months ago

Great course worth every penny. It strikes a great balance of short, digestible content that's information packed.

Redux

9 months ago

Great course! I had a hard time getting it to work with Vite since create react app is basically outdated at this point. Looking forward to the updated course I think that is coming soon!

query.gg

9 months ago

explained the management of asynchronous state really well

query.gg

9 months ago

Pacing is great and there's a lesson that covers just about everything you'll think of during your learning process. If I had one criticism it's that the exercises occasionally don't record completion when you move on to the next lesson and don't preserve the state of the exercise when you come back so you have to do it over. Repetition just helps you get better, though!

react.gg

9 months ago

I loved this course, challenges are very well prepared.

query.gg

9 months ago

I was already familiar with React Query and how to use it, but I decided to take this course to gain a deeper understanding of how it works. I’m so glad I did because now I not only understand how it works on a deeper level but also discovered new features I wasn’t using or even aware of! This course has been an eye-opening experience, and I believe it’s absolutely worth the journey. Amazing job—well done! 👏

react.gg

9 months ago

This course really gives a solid foundation for devoloping with React. You can learn new stuff, check if you gotthe core message in the quizz and practice the stuff in place without having to set up some environment. It's just the perfect package.

Modern JavaScript

9 months ago

Thanks for this course! Your ability to condense these complex topics into very understandable modules is top tier, and I have found it extremely helpful.

TypeScript

9 months ago

Great Course, I have enjoyed it and learn new things.

query.gg

9 months ago

Just finished react query tutorial. Great going through documentation and explanation that would take a lot of time when going alone. Exercises also helps to understand how RQ works. I can truly recommend.

query.gg

9 months ago

I love Tyler's voice. Listening to his voice in the videos and reading his text in the course feels like someone is talking to me but not watching a video. The course is of great benefit if you really want to understand Tanstack query from ground up. I thoroughly enjoyed it.

react.gg

9 months ago

React.GG offers a top-notch React training experience. The content is clear, practical, and well-structured, making complex concepts easy to grasp. Highly recommended! In a hurry to do the Query.gg training

react.gg

9 months ago

It's great react course

react.gg

10 months ago

The methodology is wonderful, I learned a lot. "The Rebuilding useHooks part is amazing, this challenges let us fix in our brains the knowledge acquired previously in the course, and open us to new ways to make things with React. Thank you Ui team.

Classic React

10 months ago

that was great course. im happy

react.gg

10 months ago

I've used React on and off for years, but this course definitely taught me the finer details of modern React that I felt that I had been missing for quite awhile!

query.gg

10 months ago

Person narrating over the videos was very clear and the lessons were easy to follow. I liked that the quizzes explained clearly why the correct answer is correct.

react.gg

10 months ago

Excellent course! The practical sections are outstanding. Thank you!

Modern JavaScript

10 months ago

Just finished the modern javascript course. Great even for seniors. There are some brilliantly structured lessons here that takes you in the hand along an enlightening path carefully laid out for you to pretty quickly understand the subject in a rare depth. As the journey is accompanied with a rationale for every step, you end up with actual understanding. Each step seems rational and is therefore easy Thanks for laying out the path that even makes prototype make sense, seemingly without effort

query.gg

10 months ago

This was a fantastic course. I really appreciate the detailed text + video provisions for each lesson. I tend to absorb better through text, but you can see the amount of effort and production value put into the videos. Great challenges, I learned a lot through those. I'm excited to go back through my initial app implementations and flex the new things I've learned!

React + TypeScript

10 months ago

This was a helpful course.

Modern JavaScript

10 months ago

This is eye-opening. I didn't know I didn't know javaScript

query.gg

10 months ago

As always, fantastic stuff from ui.dev! I've been using React Query for some of my pet projects for more than a year now, and the course still has taught me so many new things! Loved the exercises and Next.js lessons.

Advanced JavaScript

10 months ago

Very deep and informative course.

Classic React

10 months ago

This is the best course ever! For sure! Is very deep and the order of concepts is perfect! I strongly recommended this for everybody! Congratulations!

query.gg

10 months ago

I learned alot from this React Query Course!

react.gg

10 months ago

Nice course, thank you very much.

Advanced JavaScript

10 months ago

I love how approachable the explanations were in this advanced JS course. It's very methodical and builds upon previous lessons. It points out things that experienced developers have used and puts a spotlight on its inner workings. Going through this course made me appreciate more what I've come to use on a professional basis and have filled some gaps in my understanding. Great course!

query.gg

10 months ago

very detailed and described well

query.gg

10 months ago

I really enjoyed the React Query course. Learned a lot from the different approaches presented. Especially, for optimistic updates and query defaults. The combination seems to be very powerful! One thing that occasionally bothers me with RQ is an infinite re-fetching problem when one of the components is conditionally rendered AND using the query of the parent that fails. It's very easy to fall into it and I was expecting some info/tipps to avoid it.

react.gg

10 months ago

I really enjoyed this course. Although I am experienced in React, I still learned a lot. The content was well-structured, easy to understand, and interactive, which made it engaging and valuable for me.

Modern JavaScript

10 months ago

Really enjoyed this course, concepts were broken down in way that made it easier to understand.

query.gg

10 months ago

Great deep dive into how react query works under the hood. Learnt a lot from this course and now I have plenty of new ideas of how I would use react query in an actual production code base. Highly recommended!

Classic React

10 months ago

As someone who has been using React for a few years, it’s always great to revisit the fundamentals and continue learning more about the React ecosystem.

query.gg

10 months ago

Thanks for all the exercises and tests in the course which reinforced whatever is learnt. :)

query.gg

10 months ago

The course was a perfect complement to the already excellent TanStack Query documentation. It helped deepen my understanding and fill in gaps. Huge thanks to the library and course creators for their outstanding work!

query.gg

10 months ago

Not only does this course give a great and granular overview of tanstack query. It also provides some patterns that can immediately provide improvements to your production application.

react.gg

10 months ago

This is such a valuable platform for all skill levels. Going through these courses after having 10 years of experience has reminded me about a lot and reinforced that much more. The tutorials, solutions, discussions, and intuitive interface for learning seals the deal. I'd recommend this platform to anyone looking to get an edge up on their peers or refresh their skills. 10/10

react.gg

11 months ago

I've been using React for a while, but I never had a proper understanding of the various hooks and what they do. The course did a good job of filling in those gaps, and I now feel like I have a much stronger foundation for developing on React.

TypeScript

11 months ago

Super Thourough and easy to follow along! 🎉

query.gg

11 months ago

Just finished query.gg - we've increased our usage of react-query significantly over the past year and with almost every module, I had new take-aways or considerations I could immediately apply to improve how we are handling queries. Highly recommended for anyone who's using react-query as an integral part of their stack

query.gg

11 months ago

Everything is great!

react.gg

11 months ago

This course was fantastic. It helped me grasp complex React concepts that I previously didn't have a great understanding of. This course was far greater value than a Bootcamp, thanks!

query.gg

11 months ago

By far the best course on React Query. Highly recommend it.

React Query

11 months ago

Very nice and conceptual throughout the process

react.gg

11 months ago

I loved the smooth progression of difficulty and how easy it was for me to understand and reinforce the lessons.

react.gg

11 months ago

Awsome! I think I love this course so much! :D

react.gg

11 months ago

It's a fantastic resource if you’re looking to deepen your understanding of React or you're just starting. Everything regarding the contents of this course is GOLD. The combination of practical challenges, clear explanations, and engaging lessons truly makes the knowledge you gain stick! That can't be said for the built in text editor. It lacks basic functionality. There is no diagnostics, no lsp functionality at all and no Vim keybinds. In a world where exists Monaco is plainly unacceptable.

query.gg

11 months ago

It's a great course! Thanks y'all!

query.gg

11 months ago

I enjoyed practicing the material provided and performing well.

react.gg

11 months ago

The content of the course is really deep and technical, this is what I was searching for

React Router

11 months ago

I enjoyed this course; it succinctly explained React Router in bits that are very easy to apply and relevant to most projects. I am looking forward to an update to the most recent version of React Router.

query.gg

11 months ago

This course offers great insight into the reasons why React Query works as it does. It not only teaches you how to work with React Query specifically, but also about asynchronous data managing and some best practices in general. The quizzes and the challenges immediately put your knowledge to the test. I have already recommend this course to my colleagues and would so to anyone interested in deepening his/her knowledge on React Query.

Advanced JavaScript

11 months ago

amazing !

Modern JavaScript

11 months ago

A comprehensive course on the latest JavaScript features, primarily introduced since ES6. Although these features are now widely used in 2024, they are not always well-explained or commonly taught.

Modern JavaScript

11 months ago

Each lesson breaks down the concepts in digestible pieces and are delivered with common sense. Some topics I have previously had trouble understanding, such as Promises & async/await all make sense now because they built up from their core components, and the why as well as the how, and the how-we-got-here are communicated clearly.

query.gg

11 months ago

We’re refactoring a large app to use React Query. The docs have been really useful but this course takes it to the next level. The pace is great, the challenges are actually a challenge and there was still plenty to learn, even after using RQ for a few months. I ended up creating a few refactor PRs in our codebase while following the course.

react.gg

11 months ago

React.gg is a great course that covers everything from fundamentals to advanced React concepts. It makes learning fun and interesting with nice examples, animations, and videos. If you want to become a better React developer, look no further.

TypeScript

11 months ago

Wonderful course! This is the best TypeScript resource I’ve found on the web—congratulations!

query.gg

11 months ago

I just completed the course that was outstanding from start to finish. The highlight for me was the initial section, where we recreated React Query from scratch. This deep dive into the core concepts provided a solid understanding of how React Query operates under the hood, which added immense value for someone who’s been using it for the past three years. The explanations were perfectly clear, making even complex ideas easy to follow. As a result, I've already started applying new techniques at work, especially in how I manage query options, and handle pending and error states. This course genuinely elevated how I approach async state management. I’d highly recommend it to anyone interested in improving their app's async state management. Whether you're new to React Query or an experienced user, this course is packed with insights that can reshape your approach.

query.gg

11 months ago

This exceptional course offers a well-rounded and in-depth learning experience that caters to beginners and those looking to deepen their understanding of the subject. The combination of video, text, examples, and practical application makes it an invaluable resource. It is highly recommended!

TypeScript

11 months ago

The "lectures" were very detailed and explained topics in a way that were easy to understand. I really enjoyed that. However, the external VSCode practice problems were a struggle. There were constant errors popping up that would often break the output view and there were a couple that seemed to have minimal instruction, so I didn't really know exactly what was being asked of me. I completed the react.gg course and the integrated development environment was a massive improvement over using external tools. This Typescript course needs to implement that to be sufficient.

React + TypeScript

12 months ago

I normally start many online courses but never finish them. This course is engaging I did not feel like leaving it, it gave feeling that I was learning at a consistent pace. Thanks

react.gg

12 months ago

Really good stuff

react.gg

12 months ago

Love it!

react.gg

12 months ago

I like how many new React use techniques it taught me, which I can apply to numerous scenarios. I also appreciated that the course offered solutions so I could take notes and understand better if similar situations appear in my future.

query.gg

12 months ago

What an insightful, engaging and interesting course in React Query! Really glad I had the chance to attend it :-) Thank you!

query.gg

12 months ago

Great course! I love the fact that it's so interactive and doesn't let me lose my focus even for a moment. I think it's a must, if one wants to take advantage of full potential of React Query.

Advanced JavaScript

12 months ago

I love how he makes advanced concepts look so simple, the best bang for my buck so far!

query.gg

12 months ago

Describing the core of react-query, how it works under-the-hood to fully understand what behaviour to expect while using the hooks in production application with industry scaling

Modern JavaScript

12 months ago

Working as a senior dev for several years, I was still interested in reiterating over the basics. I liked the way how everything is explained in the course, especially prototypes. The course provides really robust mental models which, I believe, are a solid base to build everything else on top of it.

query.gg

12 months ago

I learned so much, even in areas I thought I had already mastered. The course’s pace and depth were perfect, making complex concepts easy to grasp. Highly recommend it to anyone looking to level up their skills with React Query!

Modern JavaScript

12 months ago

That is the best course I’ve ever taken in my career! Congratulations!

react.gg

12 months ago

I learned a LOT more about React than what meets the eye. Thank you for the challenges. I really grew to understand React under-the-hood, so thank you.