Learn React Hooks: useTransition - Simply Explained!

[@cosdensolutions]

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

[@sumitdubey8695]

What you say "This is the last video you are ever going to watch", is actually 100% true. Just amazing explanation 👌🏻

[@AnuragSingh-ev8qd]

I had to watch few parts of the video twice, but got it at the end. Amazing explanation, you got one more subscriber 👍

[@jacobwwarner]

Beautiful. I didn't think you could have such a refined control of rendering by using hooks like this.

[@ankurparchani3230]

I really don't have to go to another video for this topic ever again 👏🏻

[@cosdensolutions]

There you go ☺️

[@prakashbanjade4374]

Cool, now I understand useTransition and I won't need to look at other videos and solutions for this. Great explanation.

[@cosdensolutions]

happy to hear it!

[@abeercodes]

whoever has found this video on KZbin is lucky

[@EmmanuelOdii80]

Much simplified than the info from the docs :)

[@adembenabdallah9678]

I appreciate your work this helped a lot ❤❤. Your are the best who explain the hooks it is true the last video you need to watch ❣❣

[@cosdensolutions]

thank you for the kind words!

[@kofi7617]

Thank you for the explanation, really loved it 🥰

[@irradev]

Amazing! I will refactor my code. Thanks so much!

[@tusharghildiyal6814]

That was very clear and helpful brother. Thanks, much appreciated 🙌👏

[@cosdensolutions]

Glad you enjoyed it!

[@IAmRC1]

Nice explanation buddy!

[@mikewski4410]

Pretty clean explanation. Easy to understand. Thank you

[@literallyshane4306]

awesome, thank you, these videos are really clear :)

[@michaelm8044]

Sick video. Pretty advanced stuff.

[@sviatoslav8776]

Great explanation. Thanks a lot 👍

[@stepanostapuk4120]

Thank you for the video!

[@sudiptagogoi1431]

Thanks a lot cosden

[@tangsi721]

perfect example

[@garudaphoenix5479]

Thanks, man, clearly explained 💖💖

[@awekeningbro1207]

so basically useTransition is just debouncing the function to be invoked a little bit later(in milliseconds)?

[@gmjitendra]

Excellent.

[@vuongal1658]

Thank you so much!!!

[@subhashmalireddy]

It'd be great if you can explain the caveats mentioned on the react docs as well 🙌🙏. TIA

[@vinothkumarv9722]

Awesome :)

[@bibahbibah5108]

u are right i don't need to read or see another thing

[@robertomolinasilvera4863]

React sends one rerender with currentState and isPending:true to component to tell it will start transition. Then it will rerender component with newState if during this rerender (probably slow) another update is raised, async rerender will be stopped

[@sohailmohammed4024]

Nice

[@Shaheer-xs5os]

Bro that was helpful 😄😊

[@PfutIndustries]

your a goat

[@Herxh428]

Clean

[@jerrykodes]

Quick Question? Can I use the useTransition to put the loading state for side effects functions For e.g. if I have to update the user and I'll wrap the start transition on update function. I can use the isPending state to show that is updating or likewise.

[@RajkumarSingh-i5n]

Don't you think web worker does similar thing. But nice explanation sir.

[@srinivasreddysagi8722]

Subscriber++ 😁

[@dominggusoctovianus4915]

Simple but so juice... hehe

[@rockstarshahid]

Awesome. Simple and clear explanation. But I have a question regarding POSTS page. How can we resolve the UI freezing issue for Posts page? Or how can we load Posts page content faster? Can you help me with this? Thanks.

[@cosdensolutions]

only render a few at a time. So either use virtualization, or paginate them and load them 20 at time

[@VuDuc-lw5xp]

Hi, I can understand the abstract part that useTransition discards non-urgent action and handle urgent action. But can someone help me explain how startTransition discards post behind the scene with Javascript side? Because in my knowledge, when a synchronous is execute like a Post component in video, we can't discard it with outside code. So how useTransition can do that?

[@awekeningbro1207]

does the useTransition hook work with react's userReducer just like it would be useState?

[@tnarra]

Why does my script to animate in page router doesn't work in app router of nextjs

[@MuhammadUsman-ng3kn]

so it work like lazy loading?

[@deliotablang823]

seems like same with the suspense lazy load what are the difference between them?

[@cosdensolutions]

suspense is for delaying the loading of something and this is for interrupting it and prioritising other renders first

[@deliotablang823]

Many thanks. Is this working also using next/link?

[@StingSting844]

Neat. So what happens to components that render direct from manipulations like chart libraries or canvas libraries? They don't work because react has no way to stop them right?

[@cosdensolutions]

depends, if they are driven by state, this will control when that state gets interrupted or not

[@fullstackprojects5615]

hello, Can you explain this one please - while (performance.now() - startTime < 1) { console.log("entered while...", performance.now()); // Do nothing for 1 ms per item to emulate extremely slow code } performance.now() - startTime < 1 should always be greater than 1 isn't it? I don't know why is it going inside the while loop and what does 1ms delay is derived. Would be great if you can please explain.

[@cosdensolutions]

this code just forces the component to wait 1ms before continuing the render. It comes from the React docs in their examples! It just simulates slowness so that you can actually see the effects of what you are doing

[@王俊-l4e]

why not use loading instead

[@veerasamysevagen9533]

Hello, Loved your explanation but it does not seem to work with this piece of code. const buttonClick = (type: string) => { startTransition(() => { if(type === "fast") { setCounter(25); } else { setCounter(() => { let sum = 0; for(let i =0; i

[@cosdensolutions]

because startTransition works by interrupting renders that take too long after being set, not the actual setting of a new value. In your case, you're just taking a while to set the new value to trigger a re-render, but the actual re-render is super fast as it will just update the counter with one value

[@veerasamysevagen9533]

@@cosdensolutions makes sense yeah. Thanks a lot for responding.

[@danielvega646]

5:12

[@NoName-j8j3o]

Its look like debounce or throthle

[@cosdensolutions]

It does

[@agustind]

I promess you after reading this comment you wont have to read any other comment again

[@cosdensolutions]

Thanks you saved me

[@bq_wang]