6 State Mistakes Every Junior React Developer Makes

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  • Опубликовано: 22 дек 2024

Комментарии • 282

  • @lionelsamain2348
    @lionelsamain2348 2 года назад +74

    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
      @slipstream01 2 года назад

      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
      @shahemhaddad2717 2 года назад

      @It's Aaron Did u?

    • @lionelsamain2348
      @lionelsamain2348 2 года назад +1

      @@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
      @lionelsamain2348 2 года назад

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

    • @shahemhaddad2717
      @shahemhaddad2717 2 года назад

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

  • @alecssalecs8370
    @alecssalecs8370 2 года назад +1

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

  • @FidelGuajardo
    @FidelGuajardo 2 года назад +9

    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.

  • @ferdinandeke9590
    @ferdinandeke9590 2 года назад +27

    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
      @John-mj1kk 2 года назад +7

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

  • @Corntrop
    @Corntrop 2 года назад +98

    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.

  • @mohammedyousuff3832
    @mohammedyousuff3832 Год назад

    Thanks!

  • @writegoodcode
    @writegoodcode 2 года назад +5

    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.

  • @operupal
    @operupal 2 года назад +23

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

    • @youusef101
      @youusef101 2 года назад +4

      you forgot a "please" in there

    • @operupal
      @operupal 2 года назад +2

      @@youusef101 corrected)

    • @youusef101
      @youusef101 2 года назад

      @@operupal thank you

    • @terjeoseberg990
      @terjeoseberg990 Год назад

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

  • @feriduncanselen9047
    @feriduncanselen9047 2 года назад +1

    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!

  • @xcrxwadda8287
    @xcrxwadda8287 2 года назад +4

    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

  • @sefakose4600
    @sefakose4600 2 года назад +3

    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!

  • @mariusj8542
    @mariusj8542 2 года назад +2

    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.

  • @blackstonejimmy
    @blackstonejimmy 2 года назад +1

    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!

  • @jeffwang8660
    @jeffwang8660 2 года назад +9

    It is amazing. I saw another RUclipsr 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!

  • @figgsboson
    @figgsboson 2 года назад

    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!

  • @MathaGaram
    @MathaGaram 2 года назад

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

  • @dr.science9609
    @dr.science9609 2 года назад +3

    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

  • @damanpreetsingh8549
    @damanpreetsingh8549 2 года назад +3

    I love this you should make more videos like this

  • @Etubom
    @Etubom Год назад

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

  • @bhosadraju5750
    @bhosadraju5750 2 года назад

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

  • @rafayzia4180
    @rafayzia4180 2 года назад +3

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

  • @jotasenator
    @jotasenator 2 года назад

    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

  • @tanmayjain5821
    @tanmayjain5821 2 года назад

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

  • @johnsmith1789
    @johnsmith1789 2 года назад

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

  • @rohittewari6902
    @rohittewari6902 Год назад

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

  • @anshulsaxena3513
    @anshulsaxena3513 Год назад

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

  • @1306dk
    @1306dk 2 года назад +2

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

    • @zakidzz
      @zakidzz 2 года назад

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

    • @1306dk
      @1306dk 2 года назад

      @@zakidzz ruclips.net/video/tIdNeoHniEY/видео.html this one

  • @welovephp
    @welovephp 2 года назад +1

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

  • @abdullahbelkaid1684
    @abdullahbelkaid1684 2 года назад

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

  • @farid.dev1
    @farid.dev1 2 года назад +2

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

  • @iamstickfigure
    @iamstickfigure 2 года назад +1

    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
      @cchelseacxx 2 года назад

      👆Send a direct message for help 🆙 ⬆️ .❤

  • @niX.99
    @niX.99 2 года назад +1

    Thanks lama, this video give me a new knowledge

  • @cesarfranciscobueno435
    @cesarfranciscobueno435 2 года назад

    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.

  • @zihadprogrammer4246
    @zihadprogrammer4246 2 года назад

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

  • @morphine496
    @morphine496 2 года назад

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

  • @djbashan1662
    @djbashan1662 2 года назад

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

  • @andgoedu
    @andgoedu 2 года назад

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

    • @andgoedu
      @andgoedu 2 года назад

      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

  • @georgescuradu2275
    @georgescuradu2275 2 года назад +1

    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
    @grijjly6091 2 года назад

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

  • @fizikodasi
    @fizikodasi 2 года назад

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

  • @mayanksinghal5913
    @mayanksinghal5913 2 года назад

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

  • @norbertpascu6168
    @norbertpascu6168 2 года назад

    Good video bro, good reminder for people going fast!

  • @angelopavilando5967
    @angelopavilando5967 2 года назад

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

  • @Arabian_Abomination
    @Arabian_Abomination 2 года назад +1

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

  • @ferdinandeke9590
    @ferdinandeke9590 2 года назад +1

    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

  • @robertogonzalezz_
    @robertogonzalezz_ 2 года назад

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

  • @sajjadkazemi
    @sajjadkazemi 2 года назад

    Your examples are the best way to explain 👍🏻

  • @wind50321
    @wind50321 2 года назад +4

    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.

  • @ldblogs4uofficial1849
    @ldblogs4uofficial1849 2 года назад

    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
    @chichebedarlington4360 2 года назад

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

  • @vlias500
    @vlias500 2 года назад

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

  • @VikasSharma-h9w
    @VikasSharma-h9w Год назад

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

  • @anindow
    @anindow Год назад

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

  • @raphaeljcm
    @raphaeljcm 2 года назад

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

  • @bad_saurus
    @bad_saurus 2 года назад

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

  • @parmaryash4406
    @parmaryash4406 2 года назад +1

    Really amazing video

  • @muneess2979
    @muneess2979 2 года назад

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

  • @oleksandrvoichyshyn7486
    @oleksandrvoichyshyn7486 2 года назад

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

  • @mikhailvasilev5798
    @mikhailvasilev5798 2 года назад

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

  • @heguer87
    @heguer87 2 года назад

    Amazing stuff. Thank you Lama!!!

  • @pouyamv9607
    @pouyamv9607 2 года назад

    I just love the way you teach

  • @leqiooleon28
    @leqiooleon28 2 года назад +1

    which color theme are you using in vs code?

  • @uu-jq4nc
    @uu-jq4nc 2 года назад

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

  • @rubenverster250
    @rubenverster250 2 года назад

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

  • @mohammedaamirmansuri5131
    @mohammedaamirmansuri5131 2 года назад

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

  • @jvidalnunes
    @jvidalnunes 2 года назад

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

  • @okanozturk8604
    @okanozturk8604 10 месяцев назад

    Güzel açıklayıcı bir video olmuş hemşerim.Eline sağlık.

  • @omersorhun4116
    @omersorhun4116 2 года назад

    You are great :)
    Çok iyi iş çıkartmışsın abim.

  • @jonirusieshvili6623
    @jonirusieshvili6623 2 года назад

    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 😅

  • @vinhvinh4701
    @vinhvinh4701 2 года назад

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

  • @marcosMartinez-wm7bd
    @marcosMartinez-wm7bd 2 года назад +1

    great content! Please share other hooks too

  • @nick4bizz42
    @nick4bizz42 2 года назад

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

  • @ericsantoso1357
    @ericsantoso1357 2 года назад

    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

  • @mayanksinghal5913
    @mayanksinghal5913 2 года назад

    Very awesomely explained!

  • @boxboxboxboxbox
    @boxboxboxboxbox 2 года назад

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

  • @Diaryonwings
    @Diaryonwings 2 года назад +1

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

  • @turbulantarchitect5286
    @turbulantarchitect5286 2 года назад

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

  • @jswarrior_
    @jswarrior_ 2 года назад

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

  • @chrisplacktor1992
    @chrisplacktor1992 2 года назад

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

  • @zackh
    @zackh Год назад

    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.

  • @peacecoder
    @peacecoder 2 года назад

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

  • @MikdanJey
    @MikdanJey 2 года назад

    Great work, learning lot

  • @a.j.javier8119
    @a.j.javier8119 2 года назад

    Very good video, sir. Keep it up!

  • @zulfiqar7967
    @zulfiqar7967 2 года назад

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

    • @wind50321
      @wind50321 2 года назад

      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.

  • @MassHypnosis805
    @MassHypnosis805 2 года назад

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

  • @alinesouza9297
    @alinesouza9297 2 года назад

    Great tips! Thank you

  • @oscarandio2677
    @oscarandio2677 2 года назад

    This video is a gem

  • @uletin8460
    @uletin8460 2 года назад

    Great explanation.
    Hello, can i get this code repository (Github) ?
    Thanks.

  • @nischal-dahal
    @nischal-dahal 2 года назад

    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 !!

  • @aamiramin6112
    @aamiramin6112 2 года назад

    Amazing very informative. Thanks for sharing

  • @compass4048
    @compass4048 2 года назад

    😮oh thanks you , Can useState work with attributes on mouse over and on mouse out?

  • @ludwigvillalba1886
    @ludwigvillalba1886 2 года назад

    Thanks for sharing, Lama,

  • @narenderkonka9001
    @narenderkonka9001 2 года назад

    One question I have A object contains 1 lack records and B object contain 10 records , I need to return only 10objects from A , i am doing now for loop but getting performance issue , do we have any other solution?

  • @anilkumawat5241
    @anilkumawat5241 Год назад +1

    plz make video on UseMemo and useCallback

  • @farjallahhaythem5675
    @farjallahhaythem5675 2 года назад

    if you can do a tutorial abt formik and how to use it with complexe form like u just did tags and all that stuf or just native with simpl form and input and thank uu for ur consideration

  • @emanuelameh5722
    @emanuelameh5722 2 года назад

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

  • @amanagarwal8887
    @amanagarwal8887 2 года назад

    Can someone please explain in the first example from where the value of (currentValue) is coming from? inside the increaseAsync() function.

    • @wind50321
      @wind50321 2 года назад

      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.

  • @hassaanshah9819
    @hassaanshah9819 2 года назад

    Nice tutorial. Thank you

  • @stefanhupp7945
    @stefanhupp7945 2 года назад

    Really nice videos.
    Thanks 🤗

  • @dclxviclan
    @dclxviclan 2 года назад

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