Reviews
- ALAndri Luik
react.gg
3 days ago
I loved the challenges that helped to understand and grow muscle memory. Plus, the visual animations for complex under-the-hood stuff are insanely good.
David Morganreact.gg
16 days ago
I've done React courses before but this explains philosophical points very clearly from a high level perspective, and is very thorough on low level details, better than any other I've done.
- Franklin Martinez
query.gg
17 days ago
I’m constantly looking to master the React ecosystem. Despite using React Query for three years, I hadn't fully tapped into its true capabilities. This course leveled up my skills as a developer, directly leading to better performance and UX in my apps. Thank you!
- ARAtanasije Rankovic
query.gg
19 days ago
Great course, I have learned a lot of new things I did not know about.
Patrick MetzReact Router
25 days ago
This is the third course from you that I’ve completed. Great job, as always—excellent usability and very concise.
- SSiva
Modern JavaScript
31 days ago
Great course to understand the new introductions to javascript
- SSiva
Modern JavaScript
31 days ago
Great course introducing the newer constructs in Javascript
alanreact.gg
32 days ago
Just finished react.gg. I like the videos, they are well produced with excellent explanations. The mental models really stick. I liked the exercises and the hint system is helpful if you need it without spoiling the challenge
- PPPavlo Patliakevych
react.gg
33 days ago
I love this course! I learned a lot about how things work behind the scenes. The challenges help you to get a better understanding how and when to use specific React features. Excellent course!
Aaron WarrerModern JavaScript
34 days ago
just cant wait for actual hand on material so i can practice with you through the course.
- MMoes
Modern JavaScript
39 days ago
I really appreciated how my existing “framework knowledge” was broken down into deeper “why” questions. Instead of just repeating patterns I’d learned in React, I started understanding the reasoning behind them. At multiple points I had genuine “aha” moments—realizing why I’d been writing certain syntax the way I did, not just how. That shift from memorizing patterns to actually understanding the mechanics made a big difference.
Sam Kavanaghreact.gg
55 days ago
I've been studying web dev for around 20 years, and working professionally for over 10 years now. This is the FIRST course I've ever completed. The production quality, entertainment, and depth of knowledge that the people behind the course possess is off the charts. Can't recommend enough to anyone who wants to really feel like they know React and React best practices inside-out.
Veta ZoneReact + TypeScript
2 months ago
The version of React and TS was a bit outdated, it resulted in errors that were not seen as part of the course, but with google its still possible to fix the errors yourself and continue with the course.
- MMatteo
query.gg
2 months ago
Great course. It really helped me understand Tanstack Query in a deeper way and improve my front-end projects
- ARAtanasije Rankovic
react.gg
2 months ago
Phenomenal course, really captures the essence of what React is and how to use it properly. I highly recommend
Marcelo Jimenezquery.gg
2 months ago
I've been learning react from scratch with the help of docs and LLMs for the past few months, but both lack in comparison to this course. The visuals, the narration as if it was a story, the little animations when showing code snippets, i loved it all and helped the content stick, even for someone barely starting on react like me. Can't wait to see what they do in the future! Maybe a course for Tanstack Router next 😉
- Patrick Metz
query.gg
2 months ago
Loved query.gg. After react.gg, this was my second certificate — concise lessons, great examples, and immediately useful in real projects.
- Veta Zone
Advanced JavaScript
2 months ago
excellent, i wish the instructor would teach nestjs, nodejs too
Roxana TurcJavaScript
2 months ago
Liked the way the topics are explained and it makes it easier to learn. Liked the structure of the course too.
- Veta Zone
Modern JavaScript
2 months ago
Taught many advanced concepts in a way that was easy to grasp. The instructor is a really skilled teacher. The same concepts were always complicated for me but this course really helped to break it down.
Dalmareact.gg
2 months ago
After going through this course, I feel like I've just been vibe coding this past 2 years working with React. True game changer, thank you!
- Veta Zone
react.gg
2 months ago
I like that this course had text rather than only videos, followed by quizzes and challenges. The 50 challenges in hooks were amazing as they gave hands on practise to learners about hooks and also about common web apis.
Long TangModern JavaScript
2 months ago
How thorough you went with the concepts and additionally explained the tips / tricks.
Melanie Burgerquery.gg
2 months ago
Excellent course, thank you! It's just what I needed to be productive in a new codebase that uses TanStack Query. I highly recommend it to anyone else using or wanting to use the library in their projects.
- JDjoe doe
Supabase
2 months ago
pretty good :D I would recommend it :D
Ania Nowakreact.gg
3 months ago
Great course 💜 It was well organized and clearly explained. As a developer with basic frontend skills, I found it engaging from start to finish.
Anna Ignatevaquery.gg
3 months ago
I like this cours as well as others on this platform. I like their style, humor and so on. Thank the authors very much
Carlos Pugaquery.gg
3 months ago
query.gg was an excellent resource for learning the ins and outs of React Query. I now feel more confident than ever about its capabilities and how to implement them. Big thank you, guys!
- DBDomi B
react.gg
3 months ago
Just finished react.gg! Definitely worth to give it a try - well explained and good examples provided.
Khanh Chungreact.gg
3 months ago
One of the best React courses I’ve taken for fundamentals. It taught me the React thinking model (data flow, re-renders, state design) and when/how to structure state without overcomplicating things. The exercises feel real, and they force you to understand—not just follow steps.
- SStefan
react.gg
3 months ago
Very concise, lots to learn and great exercises to figure out how it all works! Its been fun!
- Frisco World
VSCode Tricks
3 months ago
This course teaches React Query in a thorough, in-depth, and incremental way, explaining not only how things work but why they work that way, with interactive lessons that make complex concepts clear. The challenging exercises and perfect pacing helped me refactor a large app—by the end I’d created several practical refactor PRs in our codebase.
Tim MackayAdvanced JavaScript
3 months ago
As a backend dev, JavaScript has always been an extra language I've needed to use alongside a primary backend language. And as such I've had to dip in and out over the years. Most of the 'explaining JS' content online just about keeps my head above water. However, Tyler's teaching style and ability to take you through the history of the language, has made so many questions marks and gotchas evaporate! Tyler is a master of the language AND a talented teacher. Awesome!
- Patrick Metz
react.gg
3 months ago
Working as a full-stack software developer in a competitive environment with demanding clients, I now feel much more confident tackling React challenges in future projects. This course strengthened my skills from React’s core design philosophy and mental model to mastering essential hooks and advanced topics like memoization, referential integrity, concurrent rendering, and React v18 and v19 improvements. Highly recommended for anyone who wants a deep, practical understanding of modern React.
- YWYaman Warda
react.gg
3 months ago
The course was great and worth it. I learned a lot, especially from the challenges—they really helped me understand React deeply. The videos are well-made and the documentation is excellent, but personally, they were less helpful for me, maybe due to my English. Overall, I highly recommend it.
Narenderquery.gg
3 months ago
I really loved query.gg. The course is very well structured,The explanations were clear throughout, and I never felt lost,Everything flows clearly and makes complex concepts easy to understand.
Joaquin GarciaAdvanced JavaScript
3 months ago
This course is awesome covering the more advance javascript concepts like objects. The last lesson, create your own array was splendid!
Somin Gandhiquery.gg
3 months ago
The way it sets up all the use-cases that can get solved using react-query. The course is very precise and to the point explaining every complex use-case very easily. I loved the interactivity in the lessons, quizzes and challenges which provide good enough visualisation of every concepts. Just would love to have captions in the video tutorials.
Valensreact.gg
3 months ago
I needed to level up my React knowledge and wanted to get into the tiny details of React. The course is well-designed and practical. I know exactly where I need to check my code to improve it.
Prashanth ThummaModern JavaScript
3 months ago
The course strikes a good balance between conceptual explanations and real code examples. I felt like I wasn’t just memorizing syntax, but actually understanding how and why modern JavaScript works the way it does.
- Prashanth Thumma
Modern JavaScript
3 months ago
The course strikes a good balance between conceptual explanations and real code examples. I felt like I wasn’t just memorizing syntax, but actually understanding how and why modern JavaScript works the way it does.
- Prashanth Thumma
Modern JavaScript
3 months ago
The course strikes a good balance between conceptual explanations and real code examples. I felt like I wasn’t just memorizing syntax, but actually understanding how and why modern JavaScript works the way it does.
Antonreact.gg
4 months ago
Well, it's technical, so it doesn't give you "the mental model of React", but it isn't trying to. It really changed my neural pathways. Especially the reimplementing hooks part -- something clicked in my brain about 2/3 through and now I "think in hooks" and know the idiomatic way of implementing functionality in modern React, which is: hooks. Most everything should be a hook. It's easy to say, but that's not enough, you have to really mean it -- which this course forces you to do.
- Anton
react.gg
4 months ago
This course rewrote my neural pathways and made me understand two things I was struggling with: hooks and concurrect React. Especially the reimplementing hooks part -- something clicked in my brain about 2/3 through and now I "think in hooks" and know the idiomatic way of implementing functionality in modern React, which is: hooks.
- CCuong
Modern JavaScript
4 months ago
As a senior JavaScript developer, I still find the course valuable. The way Tyler explains things with real life examples is priceless. It not only helps me understand the concept (or review what I understood) quickly but also makes it sticks in my head. Highly recommend for anyone who wants to advance their knowledge in JavaScript, whether you're a newbie or a veteran.
João Oliveiraquery.gg
4 months ago
What I liked: - Concise and updated content; - Lessons in both text and video formats; - Quizzes; - Questions panel with actual responses; What I think it could be better: - We can't export sandboxes; - More practice. The challenges are good but the lack of projects makes me feel something is missing; - Dedicated module for debugger tool, teaching how to get the most out of it; - More on "good practices" like the one we get in "Handling Errors" lesson.
Darcyreact.gg
4 months ago
Enjoyed this, will do other ui.dev courses and come back to this to see what stuck.
- Darcy
Advanced JavaScript
4 months ago
Enjoyed it overall, the final bit seems a bit silly with the list of array methods to know with no quiz or exercises really. Would be more interested in interview-style examples
Vojin Doncevquery.gg
4 months ago
Thoughtfull teaching, and detailed approach. Teachers are allways available and kind :)
Geert van Dijkquery.gg
4 months ago
Very informational, good amount of background info with links for more in-depth tangent info if you want/need more. How and why are both aboue equally covered for most (if not all) topics, which really helps develop proper insight. And a proper amount of (not too in your face) humor along the way.
- FRFaiza Rashid
query.gg
4 months ago
This course is for both beginners and advance level users. Kudos to the whole team!!! 🎉
Westin Humblequery.gg
4 months ago
Amazing course and a fantastic use of multiple instructional modalities! A great way to implement practical React Query knowledge in an industry standard way.
Roque A.query.gg
4 months ago
Amazing course, the best one I've done so far. I really enjoyed it and learned a lot.
- CVC V
Advanced JavaScript
4 months ago
Good course covering object oriented javascript
Alexandraquery.gg
4 months ago
I recommend this course to all developers who are using tanstack query, beginners or experienced. There is a steep learning curve with tanstack, and this course is very helpful.
Ludovic G.Modern JavaScript
4 months ago
As someone who recently picked up coding (again) by using AI coding tools, this course explains fundamental concepts that are extremely practical and will definitely help me spot issues with AI-generated code that may be wonky or downright wrong. Thanks for this course !
- MMichael
react.gg
4 months ago
It is a good deep dive into each hooks
Vipinkumar SinghModern JavaScript
5 months ago
The course touches upon the basic concepts of Javascript and also delves into some advanced topics since they are necessary to make sense of the concept being covered. I have taken this course as a refresher. From an industry practical use perspective it covers all topics in depth and answers the 'why' behind those concepts. The course lays the foundation for skills required to have a career in Frontend technologies.
Jean A.query.gg
5 months ago
I really liked the whole course, each topic was explained in great detail. Another level of the course! It helped me and will help me a lot.
Todd Endersquery.gg
5 months ago
Really appreciated the format of the videos, the layout of the sandbox, and the layout of the materials (i.e. the scope and sequence). I felt like I was able to make consistent progress. As a former educator, I appreciated the duplicated information in the text as was in the videos. Also, you can dwell on content, or you can race through, depending on your preferences. I really appreciated this. I feel like I know a little bit more about RQ than I did previously. Well done on the course.
Chris Carlsonquery.gg
5 months ago
The coursework is approachable, suited to a wide variety of experience levels, and absolutely jam-packed with useful, actionable information. The clarity and thoroughness of the instruction is well worth the (very reasonable) cost. Highly recommended!
Gabriel Souzaquery.gg
5 months ago
Query.gg was a mind blowing course. I'm working in a project that need some serious refactor and the course gave me a ton of insights on where to put my efforts.
Calvin WetzelModern JavaScript
5 months ago
Great overview of JavaScript and closely follows TC39 proposals. Some of the React code is a little dated and could use an updated refactoring (Class to Functional Components).
- VValeria
query.gg
5 months ago
Really well-made course, great explanation and interesting challenges. Information presented thoughtfully and in convenient chunks, paying attention to all important details that later come up in real life practice.
Maksym Lytvynquery.gg
5 months ago
It's the best way to gain insights not only on how to use the library but also how it’s built and how to optimize its usage. The course is limited to React Query and is highly focused. The way of teaching is very enjoyable here, the videos are filled with memes, the lessons are interactive and contain lots of animations, and challenges - you even get to recreate a part of the library itself to find out how it works under the hood.
Stiliyan V.react.gg
5 months ago
This course is excellent: genuinely engaging and never boring. Videos are straightforward and efficient, delivering necessary information without fillers. Unlike many courses that promote copying, this one uses in-depth quizzes and challenges to actively develop thinking and true understanding. It's comprehensive, up-to-date, and I really enjoyed it.
mehraquery.gg
5 months ago
Thank you for not making 30-45 minutes video per topic. Because after 25 minutes my brain just stops processing the new information. Short video lectures followed by Quizes and Coding Labs really help to cement the topic. One minor feedback though. Please bring back timestamps on the comment section. I don't see any reason to hide it. It will increase the transperancy and usablity of comment section. Thank you.
Léonreact.gg
6 months ago
The course answered all of the questions i had about React and the learning process was really smooth thanks to the quizzes and challenges.
- PMPetri Malmström
react.gg
6 months ago
Great course. The amount of knowledge given is insane.
Mark de Graaffreact.gg
6 months ago
I just finished react.gg and I’m genuinely blown away. After years of building production apps in React, I didn’t expect a course to challenge me this much. But this one absolutely did. It truly is a masterclass.
- Franklin Martinez
react.gg
6 months ago
I enrolled in react.gg to address the crucial knowledge gaps that were causing my most difficult bugs. This course delivered exactly what I needed, equipping me to find the right solutions for tough development challenges. It truly lived up to the hype and was well worth the investment. I plan to continue using this platform to advance my frontend skills.
Advait Junnarkarquery.gg
6 months ago
This dive into Tanstack Query was both simple and deep. It was truly worth every dollar as I could've spent months or years of effort into understand the underlying architecture.
- Luís A.
Modern JavaScript
6 months ago
well structured with a mix of js story and explaining why things are like they are now and how they are implemented, niche js quirks and pratical js concepts
Adamreact.gg
6 months ago
React.gg is a masterclass in modern web development education. The course design is gorgeous and thoughtfully crafted, respecting your time while delivering genuine challenges that push your skills forward.
- Luís A.
react.gg
6 months ago
Very in depth with many challenges so that we could practice and help understand what we just learned. Lack of better high view understanding, but for a sequential style learning, it touches multiple points multiple times to ground the learning and show some evolution of the tools and points out what is expected in a production setting.
- DEDevon Edmonds
Advanced JavaScript
6 months 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.
- MSMaxime S.
query.gg
6 months 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.
- BBen
query.gg
7 months 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!
Nursultan BegalievAdvanced JavaScript
7 months 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.
- Nursultan Begaliev
Modern JavaScript
7 months 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.
- MSMiroslava Schwabova
query.gg
7 months ago
Fantastic course! It contains everything you may need about React Query.
Alanreact.gg
7 months 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 😁
Alexander Karanquery.gg
7 months 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.
- IIvan
react.gg
7 months ago
Love all ui.dev material, you guys are the best
Basiel Smitzreact.gg
8 months 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.
George Savchenkoquery.gg
8 months 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!
dushyantreact.gg
8 months 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 !
- George Savchenko
query.gg
8 months 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.
Sergio Benítezquery.gg
8 months 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!
- Federico
React Router
8 months 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.
Romain Pereiraquery.gg
8 months 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.
ireneModern JavaScript
8 months 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.
Fabian Berndtreact.gg
8 months 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.
Chasereact.gg
8 months 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!
IhorAdvanced JavaScript
8 months 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 :)
Samuel Sharpequery.gg
8 months 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.
Alexandrequery.gg
8 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!
EFSUNreact.gg
8 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!
VI0L3TF0Xquery.gg
9 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
Charlie WardAdvanced JavaScript
9 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
- Charlie Ward
react.gg
9 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)
- SGSantiago Garcia
react.gg
9 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.
- AAnna
react.gg
9 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!
- Sergio Benítez
Advanced JavaScript
9 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.
Donkreact.gg
9 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
Ahmet Berat Canquery.gg
9 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!
- WDWagner d.
react.gg
9 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.
Juan Cervantesreact.gg
9 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
Razvan Ciobanureact.gg
9 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!
Yiannis Panagidisquery.gg
10 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.
Mensah Samuel AdjeiReact + TypeScript
10 months ago
Great, just great. I love that this course explains concepts
- JLJoão Lima
react.gg
10 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.
- MMartin
react.gg
10 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 !
Việt Trọng DươngAdvanced JavaScript
10 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.
Carlos Chavarriareact.gg
10 months ago
Taken multiple courses. None like this. Loved the challenges approach with the integrated environment. I feel like I finally understand React
- Bechma
query.gg
10 months ago
I learnt not only about the framework specific, but also about how to interact with the server from the client.
Anshuman Bhardwajreact.gg
10 months ago
I love the easy to go teaching style with humor. Also, the quizzes and challenges instill the teachings nicely.
Achara C.react.gg
10 months ago
If you love finding out WHY things works and to do so in an incremental way, react.gg is the way!!!
- Việt Trọng Dương
Modern JavaScript
10 months ago
waugh! i liked it a lot! would love if there were more modern features (like nullish coalescing) for example.
- Anna Ignateva
Advanced JavaScript
10 months ago
I like this course because its interesting lessons, thank you very much for it
- EEric
query.gg
10 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.
Jasur Mirboboyevreact.gg
10 months ago
Thanks to the creators. This is the best course I've ever gone through.
- Mensah Samuel Adjei
TypeScript
10 months ago
Absolutely touched grass in this typescript course, it's crazy awesome. And thank you.
- Anna Ignateva
Modern JavaScript
10 months ago
Interesting and compact course with good explanations of ES6 features
Brienna SambranoAdvanced JavaScript
10 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.
Karim Dallas-Newellquery.gg
11 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!
Andrzej Legutkoquery.gg
11 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`.
- Anna Ignateva
react.gg
11 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
Stéphane Martinreact.gg
11 months ago
A very good course, many exercices to try harder and harder, cristal clear explanation. Esay to use spacework UI
- NYNathan Young
query.gg
11 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.
Matthewquery.gg
11 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.
- RDRyan Davis
Advanced JavaScript
11 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!
- CDClickMod Developer
react.gg
11 months ago
Just finished react.gg! Learnt a lot in a short period of time.
- DEDevon Edmonds
Modern JavaScript
11 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.
- ONOlivia Nguyen
react.gg
11 months ago
It is gooddddddddddddddddddddddddddd
Justin HazratiClassic React
11 months ago
Learned a lot about React router and reinforced some concepts from other courses.
Daniel Kiryakovreact.gg
11 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.
Nelson Batistareact.gg
11 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.
TH Edisonquery.gg
11 months ago
Just finished react.gg. Wow. The course is a masterpiece. Learned a lot, even after years of developing on React. Thank you 🙏
- Justin Hazrati
React Router
11 months ago
Learned some interesting aspects of routing and navigation that I'd used before but haven't fully understood.
Petarreact.gg
11 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!
Bence Feketequery.gg
11 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!
Damian Mlynarskireact.gg
12 months ago
Fantastic course, great explanation of how React works, and lots of challenges to work through.
Zan Thrashquery.gg
12 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!!!
Adnanquery.gg
12 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.
Lumen SierraTypeScript
12 months ago
Loved having everything laid out in an easy-to-understand order. Plus extra info like Babel support will be very handy!
- Justin Hazrati
React + TypeScript
12 months ago
Learned a fair bit about contexts and refs that I didn't know before.
- Justin Hazrati
Redux
12 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.
- JJacatori
Modern JavaScript
12 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👌!
Markreact.gg
12 months ago
Really love the combination of theory + challenge, plus a level of detail that actually made me better understand react much much better.
Ohad Osnatquery.gg
12 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!
- Justin Hazrati
query.gg
12 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.
Ethan Kircherreact.gg
12 months ago
An absolute masterpiece. Explanations are simple but effective, with relevant examples.
Sami Nieminenquery.gg
12 months ago
I truly enjoyed react-query course. It was well structured and gave a really good understanding of the subject.
Laura Del Vallereact.gg
12 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!
Ryan Davisreact.gg
12 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!
- RCRobin Courses
query.gg
13 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.
- DDani
query.gg
13 months ago
I really liked the course, the quizzes at the end of each lesson were very useful.
- MPMike Purnell
query.gg
13 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.
Franca Visokolskisquery.gg
13 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!
Barak Arosh Surianreact.gg
13 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
- Mark
query.gg
13 months ago
I really enjoyed the React Query course! The combination of theory, questions and practices really worked well.
Manuel La Portareact.gg
14 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 🙌
Alanquery.gg
14 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.
- NNNagaraju Nooka
TypeScript
14 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.
- AMAlex M
react.gg
14 months ago
The comedy is an exquisite touch.
Kim Phamreact.gg
14 months ago
Very great teaching. I learned how to effectively use different hooks and how React life cycle works
Aitor R.query.gg
14 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.
Marco Montoyareact.gg
14 months ago
It was an incredible course to learn about the core implementations of React, great content and experience.
- SSSunil. S
react.gg
14 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.
Federico Babrauskasquery.gg
14 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.
Gabriel Clementequery.gg
14 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.
- ELEryk Luniou
query.gg
14 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.
Đào Ngọc Thànhquery.gg
15 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!
- Dimitar Mandarliev
react.gg
15 months ago
It's amazing! I managed to understand the fundamentals and this gave me the confidence to explain the core features of React!
Scott Kinneyquery.gg
15 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.
Koen CalliauwModern JavaScript
15 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!
Alexander Bilozorquery.gg
15 months ago
Good way of putting content, great structure and pinch of humor
Basant Soniquery.gg
15 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.
Ali KalkanelModern JavaScript
15 months ago
I just finished the modern javascript course and it was incredibly insightful, confident to move on now.