6 State Mistakes Every Junior React Developer Makes

[@lionelsamain2348]

Hey, I just wanted to let you know that I graduated this year. I finally have my Bachelor degree in management developement. And this is (partially) thanks to you ! I followed your Netflix tutorial and it helped me tremendously for one of my last assignments. So you can go to sleep tonight knowing you made someone else's life better. I'm 33 and this bachelor degree is my second one. I decided to study it while working for a job I hated in order to get out of it. It already opened so many opportunities to me and completely changed my professional life and my career perspectives. Thanks a lot, I'll keep following your videos because I learn so much every time.

[@slipstream01]

hey did the netflix tutorial help learn react or are you alread good with all the basics of reactt? i am going to try to code along with him in that tutorial so i can learn some more do you think its a good idea?

[@shahemhaddad2717]

@It's Aaron Did u?

[@lionelsamain2348]

@@slipstream01 I was close to nowhere with React when I followed this. It's a lot to process though so maybe you should do a few tiny exercises to understand the very basics, then start with this. But whatever you do he explains everything he does so you'll be able to follow. But you might struggle to understand what you do. And if you don't understand, well you won't remember.

[@lionelsamain2348]

@It's Aaron Congratz mate ! What do you do ?

[@shahemhaddad2717]

@It's Aaron Glad to hear that🙌 keep it up

[@Corntrop]

Wow. I've been developing apps for months and I realized I didn't know 4 of them lol. Thanks for making us better developers. Please share other hooks too.

[@sarcasticdna]

++

[@ferdinandeke9590]

And also, it would be lovely if we start using typescript in both our nodejs and react builds, that also will cut down a lot of these kind of errors. i don't know why no matter how much of tutorials i watch out there, i always still wait for you to implement such stacks before i really feel comfortable with them, cos your explanations sink so well in my brains at just a glance

[@John-mj1kk]

Not using TypeScript is just asking for trouble and endless nights.

[@FidelGuajardo]

I love the examples LamaDev uses. He really thinks beforehand about what code snippets are the best to explain concepts. He is a master teacher.

[@alecssalecs8370]

Yes please ! Explain all the hooks, everybody needs a refresh and you are very good at explaining.

[@feriduncanselen9047]

Hey Lama, I am going to start working tomorrow at my first software developer job. Thanks to your portfolio videos and other various videos I feel really confident for tomorrow. Thank you for uploading videos like this you are a life saver!

[@writegoodcode]

for the last one, you could wrap the find one in usememo and pass the dependency as id, to prevent calculating it again and again when you have a lot of states.

[@mariusj8542]

Spot on! I feel like a fool for not understanding that we could define the whole model/object in the initial useState,I have used the standard && every time I use map.

[@operupal]

Hello Lama, make please a video about useMemo, useCallback, useReducer)))

[@youusef101]

you forgot a "please" in there

[@operupal]

@@youusef101 corrected)

[@youusef101]

@@operupal thank you

[@terjeoseberg990]

@@operupal, The “please” should be before “make”.

[@sefakose4600]

Great content!! Please keep releasing these kind of videos about best practices or dos and don'ts in React. It helps a lot! Thanks for good work!

[@xcrxwadda8287]

Please make more educational videos like this ... They are very helpful and everyone loves them would suggest a tutorial how to use product management tool like Trello

[@bhosadraju5750]

Please make video on useReducer ...you are the greatest teacher i came across in my learning till now

[@jeffwang8660]

It is amazing. I saw another KZbinr recommended to use useState individually for each state, but I feel your suggestion of using them as an object is much better. I am interested in useReducer. Could you talk about it as well. Thanks!

[@dr.science9609]

You are my teacher ❤️ if I reach success definitely I will mention you in all my success note And you will really present in my success note

[@MathaGaram]

What a refined explanation!!! .This guy knows the core issues that juniors unknowingly do.

[@Etubom]

An absolute gem of an explainer video.Can't seem to find it in your github 2022 repo.

[@damanpreetsingh8549]

I love this you should make more videos like this

[@figgsboson]

hey, thank you so much for all your vids, especially on React hooks. I like that you make it simple to understand while maintaining content and the rationale behind it. Plus your voice and the way you speak is comforting haha, it helps with the stress of complex topics like this. thank you!

[@rafayzia4180]

Thank you for all this lama :) I learnt alot from you in the past year 🥳

[@rohittewari6902]

Best video to understand useState and use it in the right way♥

[@tanmayjain5821]

I faced same issue yesterday and got its solution today while casually watching this video.

[@jotasenator]

this is gold, thanks for your time doing this video, and thinking about the proper examples, i will share this on my linkedin. Wish you the best. thank you once more

[@johnsmith1789]

Your insight is pure gold Lama Dev! Thanks for sharing your knowledge & experience~

[@niX.99]

Thanks lama, this video give me a new knowledge

[@welovephp]

Can you do a video about useReducer, maybe expanding the example in this video? That will be great.

[@farid.dev1]

Safak you are the best! Thank you! Please make a Full Stack app with TypeScript.

[@Arabian_Abomination]

Thanks Lama. I’m starting to love react. Use to love Vue most but now switched to react 💯

[@ldblogs4uofficial1849]

Please create this type of video again this really helps Reducer context react toolkits And all the unable to understand hooks Thank you sir

[@chichebedarlington4360]

Thanks for the update, you are just as good as John Smilga❤️

[@1306dk]

Great content as always. Ive been using your approach to handle forms ever since your last video about handling forms 👍

[@zakidzz]

where is that vedio of forms can you please put the link here?

[@1306dk]

@@zakidzz kzbin.info/www/bejne/qnrHf5ilfdOce7s this one

[@zihadprogrammer4246]

This video is so helpful. Please create this type of videos more.

[@iamstickfigure]

Nice. I didn't now about the function version of setStateVar. Also, you may have left this out to avoid confusing people, but I'd recommend a "useMemo" on line 12 of the last bit of code in the video. Running a "find" call on every render is maybe not great. Not terrible for an array of 3, but "useMemo" would be a good practice for things like that. Or you could also use a Map for an id lookup of the product.

[@cchelseacxx]

👆Send a direct message for help 🆙 ⬆️ .❤

[@anindow]

U are not a lama u are an G.O.A.T

[@andgoedu]

Dude thanks alot i literally ran into this problem on back4app , and this enabled me to assign multiple properties seamlessly and organized

[@andgoedu]

can i mention you in my tutorial as a reference ? for a better method than mine i am doing a typescript tutorial and this helped me out alot

[@mayanksinghal5913]

Loved it brother, learning a lot ... Keep it up for us

[@grijjly6091]

Handle form onSubmit event. It does not render on every input, handle once, if form value affect another form value, only create for them

[@morphine496]

I'd love to see useMemo and useReducer sometime, thanks for everything, you really help us a lot.

[@sc0or]

The example on the preview is not a mistake. In case posts are changed, postId won’t help. And even more: if posts are changed with the same data, postId will hide that unnecessary update (that degrades a performance). A lost reference in case of selectedPost will help to discover that error early. So, a developer can either fix the redundant update, or to cleanup selectedPost before the update

[@djbashan1662]

Nice tutorial, nice explanation of concepts. And before I forget,YES I want more videos on react hooks

[@georgescuradu2275]

I’d love to watch a useReducer and context API tutorial from u. I watched the Redux one, but I personally believe context API is easier to understand.

[@anshulsaxena3513]

yes definitely, please make a lecture on usereducer hook..... Thank you for this great tutorial sir, its kind one of the best and amazing

[@norbertpascu6168]

Good video bro, good reminder for people going fast!

[@VikasSharma-h9w]

Very nice explaination . This one video solved my many problems.

[@angelopavilando5967]

yo just saying. keep it up. learning new things from you always. 💓

[@sajjadkazemi]

Your examples are the best way to explain 👍🏻

[@fizikodasi]

Hazırlamış olduğunuz videolardan çok faydalanıyorum. Teşekkür ederim. Reducer konusunda yapacağınınız videoyu sabırla bekliyorum.

[@cesarfranciscobueno435]

Thank you so much, i'm writting a code yesterday e thinking about how to write my code in a better way. There was a lot of States hahaha, so now today youtube show me your video and was what i need. You got a new subscribe.

[@blackstonejimmy]

I'd love a more in-depth look at the useState -> useReducer example you showed - this hook always confuses me (the docs say it should be obvious if I'm familiar with Redux... however I am not familiar with Redux). Same with useMemo and some of the more obscure hooks actually - but I might just be getting greedy asking for them... fantastic video either way!

[@robertogonzalezz_]

Thank you for showing us the most common errors, you are very useful for us. ❤

[@parmaryash4406]

Really amazing video

[@dclxviclan]

Peoples, who teaching other peoples coding for free - THIS SAINTS HUMANS 😇, Thanks for all u tutorials🤚👍

[@abdullahbelkaid1684]

Woowwww i just started learning react last week and you gave me a bunch of informations with this video, thank you so much 💗💗

[@wind50321]

At 14:23, you are not creating a new product in handleChoose(). You find the product in the array and save the object in selectedProduct. In increment(), you create a new array with all the products (map), and you replace the product with a new object with updated quantity. But selectedProduct is still the old object.

[@muneess2979]

really great work.. keep it up.. expecting more videos like this... 🙏👏👏

[@raphaeljcm]

I've just found your channel, a lot of nice tips here. Thanks!

[@anilkumawat5241]

plz make video on UseMemo and useCallback

[@oleksandrvoichyshyn7486]

This is amazing, refresh memory, and remind what was forgotten. I would watch video about another hooks, and that hooks (noob, pro)

[@vlias500]

I do love your content man, best Lama teacher ever!)

[@uu-jq4nc]

Well done Sir, an excellent example well executed. Thank you.

[@bad_saurus]

Such an informative video! Many thanks for your tutorials. I've learnt from you a lot!

[@marcosMartinez-wm7bd]

great content! Please share other hooks too

[@MassHypnosis805]

Please do a reducer tutorial. This video was extremely helpful.

[@mayanksinghal5913]

Very awesomely explained!

[@mohammedaamirmansuri5131]

I was really helpful. Would love to watch more on useReducer hook

[@ferdinandeke9590]

great insights Lama, thanks. And yes please i would love to understand properly how the "useMemo" hooks and the likes of it used for performance optimization works, and how we could implement that to improve performance of our apps. thanks once more

[@tonyohagan1195]

And this is why I code in Vue. Vue's ref() state management eliminate these bugs and remove the confusion of using two functions per variable.

[@jonirusieshvili6623]

hello guys :D lama, i'm also one of your student for a long time and thanks for all ^^ i wanted to say that it's a great idea to start use typescript but in my opinion it's better if firstly we'll learn real-world password forgot and reset functionality with react and node and it be even better if we use next.js much often ^^ i'm waiting for it 😅

[@jvidalnunes]

Very useful. Tks a lot. I made some of these mistakes. Now, no more :D

[@okanozturk8604]

Güzel açıklayıcı bir video olmuş hemşerim.Eline sağlık.

[@hassamulhaq7762]

Last example is helpful. Use id instead of updating object or take action on whole object.

[@pouyamv9607]

I just love the way you teach

[@heguer87]

Amazing stuff. Thank you Lama!!!

[@mikhailvasilev5798]

In the 4 part of your video, you would add the changeUser handler once on the form tag.

[@zackh]

The multiple states with separate onChange functions is a mistake I made when creating a recipe app. I'm so annoyed that I did that because I understand updating properties of objects and spread operators, but was just so hung up on how stupid it was to have all these states that I couldn't figure out this method.

[@leqiooleon28]

which color theme are you using in vs code?

[@aamiramin6112]

Amazing very informative. Thanks for sharing

[@chrisplacktor1992]

Great video 👍👏 Please go deeper into the useReducer usage next video

[@Diaryonwings]

Great video lama dev can you please make a video on core differences between junior and senior dev

[@rubenverster250]

Haha. Man this is so good making me remember all the Junior mistakes I made like this years ago XD

[@peacecoder]

We will more happy to see more such videos about react hooks and it's perfect use cases..❤️

[@omersorhun4116]

You are great :) Çok iyi iş çıkartmışsın abim.

[@ericsantoso1357]

hi, can you explain more deeper about how to handle complex input (section 5 : useState vs useReducer) and how to do another actions after category (select) changed if we used useReducer

[@MikdanJey]

Great work, learning lot

[@ubqariwazaifofficial9095]

I checked - everything is clean

[@alinesouza9297]

Great tips! Thank you

[@a.j.javier8119]

Very good video, sir. Keep it up!

[@hassaanshah9819]

Nice tutorial. Thank you

[@nick4bizz42]

can you make a react course with two dashboards, Frontend and Dashboard?

[@Andrew_Essam]

thank u so much that was super helpful and informative

[@ludwigvillalba1886]

Thanks for sharing, Lama,

[@boxboxboxboxbox]

Hi, may i know what editor you are using? I see the feature of multiple lines editing, that is amazing

[@zulfiqar7967]

1. How functional update work with currentNumber?? There is currentNumber declaration 🤔 2. What is prev in setUser((prev)) ??

[@wind50321]

It's best to use functional update if the new state is based on previous one. When using functional update, React will pass the latest state to your function.

[@akuntumbal3222]

Please make a video about advance rest api using nodejs (express.js & mongodb (only rest api). Thanks a lot Lama Dev Edited: Like maximilian course

[@stefanhupp7945]

Really nice videos. Thanks 🤗

[@SonAyoD]

Make a functional and practical use reducer video please 🙏🏾

[@oscarandio2677]

This video is a gem

[@jswarrior_]

Can you make an usereducer example with the same code snippet ?

[@aatish4697]

A Hidden Gem Thank you so much

[@nischal-dahal]

Please make the video of really complex form like including all the input tags like checkbox, and others and Image upload in React application using MERN stack !!

[@turbulantarchitect5286]

I would like to know about usereducer use cases. Thanks!