Learn React Hooks: useRef - Simply Explained!
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- čas přidán 7. 09. 2024
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In this video we will learn about React hooks, starting with useRef. This powerful React hook will allow you to store and manipulate values that are not needed for rendering. You will learn the difference between useRef and useState, when to use which, and how useRef works under the hood. We will use refs to handle values without triggering re-rendering, and we will also look at how refs can be used to manipulate HTML elements, as well as how they are used in 3rd party libraries.
In this new React world, hooks are here to stay, so it's best to learn them! In this tutorial I demonstrate the useRef React hook, and I explain it very simply and in a way that is easy to understand. Enjoy!
Hope you enjoyed the video! I also have a really cool and unique course that will teach you way more than this video. You'll learn how to build an actual complex project with React. It's called "Project React" and you can find it at cosden.solutions/project-react. Also, I have a free weekly newsletter called "Import React" with tutorials, news, and cool stuff about React! You can sign up at cosden.solutions/newsletter?s=ytc
This is the reason why it's hard to understand about useRef. It's so confusing but you help me to make it easier to understand. GREAT JOB!!!
I was bit suspicious when you said we will not need another video for this but you were right. Really nice explanation, I finally understand the usage of refs.
Happy to hear it!
This is the BEST useRef tutorial - you are VERY good at explaining things in a decent amount of time, and you cover everything. I will try to find more useful videos on your channel, hopefully, there will also be something about TypeScript
Thank you! Glad you enjoyed it 🤙
Great job! Your videos have been really clear and provide straight forward examples even explaining some of the gotchas of react
Really glad you're enjoying them!
Wow... I spent hours on it, when I used states and didn't understand why its not changing it immediately... So grateful !
Thank you man!
Finally, I understood useRef. You explain very well my friend. Thank you!
Liked and subbed.
glad it helped! 🤙
These guides are incredible. You made me understand clearly in 3 videos what my teacher couldnt in 3 days
I think I'm starting to get this hook. Easy to follow examples 👍. Also, it's great that you use the dark mode, my eyes appreciate it.
You're welcome ☺️
A really good deep dive on hooks for me. Thanks
Best useref tutorial.....highly recommended
useRef stores state that doesn’t trigger a rerender when it changes. The useRef value isn’t used in the jsx component
2:45 nuance about setState, when you call setState to set a new state value, that state variable which will not have the same value until the next render, but incrementing a useRef value is immediate, happens right away not in the next render because useRef doesn’t even trigger a rerender
8:20 so usually you don’t use useRef value in the jsx because your component won’t rerender to display the latest useRef value, but you can use useRef to hold reference to HTMLElement to access dom elements directly and call functions on them like focusing a component
Thanks, you explained it in a very simple way👌. I want to learn Express from you.
That's amazing explanation of useRef on whole CZcams. Thanks sir 👍
Thank you very much. It really is the last useRef video i would ever need.
great explanation, Exactly what I was looking for
It clears many doubt about state vs ref.
count a like from me.
awesome I now understand . Thanks for the explanation. i'm looking forward to watching more of your videos
I really like this description, it made sense. I am a new sub and opted to be notified of all your videos. You seems like this is a good example of the new gen of code videos.
I really appreciate that!
You're the type of tutor we just want to hit that like button for without first having to watch the video, because previous videos were on point!
Thanks!
+ would you also mind if I were to explain these hooks but in other language with credit like "Inspired by: Cosden Solutions"?
yes go for it!
you did an excellent job in explaining things with examples in short amount of time. Give me more tutorials lol
There's a playlist full of them!
useRef is very complicated for me , you make it simple .Thank you a lot!
You're welcome ☺️
Thanks for the clarification i really understood the difference between the useref and usestate you made my 12 minutes worth
Glad you found it useful!
Thank you so much, I have wasted so much time searching for this simple answer.
You're most welcome ☺️
Thank you, very good explanation!! You helped me a lot!!
wow, simple and to the point
thanks a lot :)
Nice example. Thanks
Absolutely another wonderful tutorial after I watched this video I can say that I am super confident with working with useRef your explanation is really straightforward and clear
Glad to hear it!
I have watched it 3 times and finally got it :-) thanks, great explanation
beautiful
This a good explanation of useRef.
However, there is an issue when using it when Concurrent Mode is activated in React.
That's a topic that is even more complex in regards to the usage of useRef.
I don't know if you can make a video on but it would help people who are going to run into that issue sooner or later. Thanks
Thank you so much , i was realy confused when read the docs , but now it's clear much more better!
Earned a subscribe! Thank you for explaining this super clearly and explicitly.
really good explanation, thank you for the video, really appreciate it
Love this series!!! 🤗
love your explanation. every thing is clear now about useRef, thanks!!
Thank you so much, this video helped me in my interview, specially the re-rendering part
Nice video and appreciate the time and effort that you put into developing quality content.
Thank you so much for your incredible explained for react hook. it 's make me supper clear. 🥰
This video not only made me understand useRef better, you just made me realize how react re-renders work :D Thanks man.
Glad to hear it!
Very clear and concise, thank you for the explanation.
Amazing explanation 🎉
Loved this series man !!
btw whats the vscode theme ?
Amazing, I enjoy watching your React lectures!
very clear and concise tutorial. thanks for this content
Clear and simple thank you
Glad you enjoyed it ☺️
This is the best useRef tutorial . Thansk !
To elaborate 2:24 useRef() always returns an object with one 1 property, literally 1 called 'current'. If you console.log(ref), you will see this and 'current' is of 'any' type.
Your reach hooks playlist is awesome. Thank you. As for useRef vs useState - I understand the point you are trying to show. But you kinda comparing apples to oranges. If you make your state object (to be similar to ref shape) - then they are exactly the same, and state is updated in current render too, just like ref!
const [count, setCount] = useState({value: 0});
// click
count.value++;
setCount({ value: count.value });
countRef.current++;
console.log(count.value, countRef.current); // both are 1 after first click!
or even simpler. Just do to the count what you do to the current:
let [count, setCount] = useState(0);
// click
count++;
setCount(count);
countRef.current++;
console.log(count, countRef.current); // both are 1 after first click!
Sure they might behave the same, but updating state like that won't trigger a re-render of the component so you don't want to do that. If you do then use a ref because that's what it's for. I think the explanation made sense because yes they are different, but serve different purposes
@@cosdensolutionsSure, your explanation makes perfect sense. It's react API that is too complex and requires explanations like this. And it allows to be misused like in my made up example, and yet it still re-renders and works properly. Even though in my example value of count is changed instantly (just like ref) and not in next re-render. And, yes, it triggers re-render.
You will be famous one day keep going 🙂 thanks a lot
Pls do a series on react beginners completing all concepts
Hats off to you sir! Great explanation for a beginner like me
Thanks man! I learned a lot.
Great explanation 👏
🤙
now I cant forget this, tq!
Many thanks for this clear explanation. 💗💗
Very nice explained
Great explanation! .Looking forward for more series
Bro great explanation. Thanks
useRef is used for storing a DOM element (i.e. it's REFerence) or values that are not reactive.
I really enjoyed it and understood
Ho Wow. at 6 min it clear my mind.
awesome, thanks.
Best explanation 🎉
Thanks. But i still need time to pondering about this hook.😊
love your explanation!
The best explanation! Thank you
Good explanation, thanks
absolutely great explanation ! thx my friend
Great video man, really clear explanations !
Your videos are great
I just don't understand what is the difference between a regular variable and a useRef. they both don't re-render. I can just let var = 0 and then use it wherever I want
Thanks for detailed explanation!!
Thank you for creating an amazing tutorial, it's truly help me a lot!
I have a request, can you make video about using useRef, forwardRef and useImperativeHandle hook in React? Component that managing it's own state. I have always wanted to know more about this react pattern.
already have those :)
you Earned a subscription
Very much thanks about the userState rendering. It bothers me for a long time.
Can you make a video on how to use refs in autocomplete material ui component
when you said wont need to watch a useRef video again you were ont kidding.
Nicely done my man.
Thanks for the video, it was a good explanation.
Keep doing the best work.
Awesome, straight to the point!
Could you make a video about custom Hooks?
Already have ☺️
@@cosdensolutions would you mind sharing the link? I can’t find it
@@saadchraibi6712 check my channel -> playlists -> custom hooks (there's only one video but there will be more)
Helpful information thank you
much better then so called "paid courses"
its very healful..great Video
respected .. very thanks
Growing fast man!
🤙
Well explained buddy.. Big 👍
6:52 UseRef vs useState : triggers render?
8:29
Using ref on element
Etc:
- hooks runs after render
hmm, I don't get it?
Thanks man this is awsome
Awesome video brother 😎
Very well explained. Subscribed.
🤙
Thanks Cosden . Good video
круто, продолжай
its intresting.
continue This)
Realy, thanks alot😍
Very useful
Great explanation!
Loved it 💌
Thanks bro. 💯
Thank you!
Awesome!
Thank you so much
thank you so much ^^
Great video as always