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

[@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.

[@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]

++

[@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.

[@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.

[@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!

[@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!

[@alecssalecs8370]

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

[@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”.

[@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!

[@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.

[@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

[@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!

[@rafayzia4180]

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

[@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

[@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

[@johnsmith1789]

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

[@MathaGaram]

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

[@damanpreetsingh8549]

I love this you should make more videos like this

[@bhosadraju5750]

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

[@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

[@Etubom]

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

[@mayanksinghal5913]

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

[@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.

[@farid.dev1]

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

[@norbertpascu6168]

Good video bro, good reminder for people going fast!

[@djbashan1662]

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

[@vlias500]

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

[@abdullahbelkaid1684]

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

[@zihadprogrammer4246]

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

[@rohittewari6902]

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

[@niX.99]

Thanks lama, this video give me a new knowledge

[@bad_saurus]

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

[@angelopavilando5967]

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

[@morphine496]

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

[@robertogonzalezz_]

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

[@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

[@VikasSharma-h9w]

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

[@sajjadkazemi]

Your examples are the best way to explain 👍🏻

[@raphaeljcm]

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

[@mohammedyousuff3832]

Thanks!

[@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

[@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.

[@chichebedarlington4360]

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

[@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!

[@heguer87]

Amazing stuff. Thank you Lama!!!

[@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

[@jvidalnunes]

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

[@fizikodasi]

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

[@muneess2979]

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

[@uu-jq4nc]

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

[@Arabian_Abomination]

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

[@rubenverster250]

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

[@mayanksinghal5913]

Very awesomely explained!

[@oleksandrvoichyshyn7486]

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

[@pouyamv9607]

I just love the way you teach

[@welovephp]

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

[@a.j.javier8119]

Very good video, sir. Keep it up!

[@anindow]

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

[@okanozturk8604]

Güzel açıklayıcı bir video olmuş hemşerim.Eline sağlık.

[@peacecoder]

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

[@mohammedaamirmansuri5131]

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

[@omersorhun4116]

You are great :) Çok iyi iş çıkartmışsın abim.

[@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

[@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 🆙 ⬆️ .❤

[@chrisplacktor1992]

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

[@MikdanJey]

Great work, learning lot

[@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 😅

[@parmaryash4406]

Really amazing video

[@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.

[@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

[@aamiramin6112]

Amazing very informative. Thanks for sharing

[@MassHypnosis805]

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

[@marcosMartinez-wm7bd]

great content! Please share other hooks too

[@hassaanshah9819]

Nice tutorial. Thank you

[@alinesouza9297]

Great tips! Thank you

[@Diaryonwings]

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

[@stefanhupp7945]

Really nice videos. Thanks 🤗

[@Andrew_Essam]

thank u so much that was super helpful and informative

[@Naton]

dang...my react skill just leveled up watching this video

[@anthanghoang7338]

it worked for me so i leaved a like and sub

[@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

[@dclxviclan]

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

[@anilkumawat5241]

plz make video on UseMemo and useCallback

[@mikhailvasilev5798]

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

[@НатальяСемешенко-т4х]

Thanks! It's great lesson! Yes, I'd like to see a useReducer :) I don't understand it...

[@hassamulhaq7762]

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

[@ludwigvillalba1886]

Thanks for sharing, Lama,

[@aatish4697]

A Hidden Gem Thank you so much

[@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.

[@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.

[@andrewborys4599]

Thanks, it’s cool video, you are explaining difficult things by simple words. As you said, I’m waiting for redux, maybe redux toolkit or redux thunk… You great 👍🏼

[@markkevinsoriano1562]

Redux and React hooks for the next? And thank you for posting such wonderful video tutorials much love from the PH

[@vinhvinh4701]

Hi Guy, I don't know why I can't use " ?. " like in video 4:35 , I'm using React 16.9?

[@micaeldie8584]

Great tutorial so precise, learn a lot if you can do some for useReducer it will be great. Much love from Côte d'ivoire 🇨🇮

[@nileshnilu7902]

Very useful thanks❤

[@emanuelameh5722]

Thanks Lama for this insightful video. Can you please do a video of how to use useEffect hook properly?

[@SonAyoD]

Make a functional and practical use reducer video please 🙏🏾

[@Behind-The-Scenes]

You are a really great man.