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@3pleFly
Жыл бұрын
Joshua if you ever release a course on rxjs or even more advanced things in angular, I will buy it.
@danielnaydenov9899
Жыл бұрын
You’re doing great content man. Keep up the good work ! I’ve been following you for a few months now and I love the way you explain things and the examples you back them up with. Your channel is like a “TS” - a superset of rxjs and reactive programming. Cheers ✌️🎄
@dayronalfaro9461
Жыл бұрын
yes indeed, nice video morony this is a good place to learn or refresh our knowledge
@hansschenker
Жыл бұрын
Since we are on KZitem - you can Hot and Cold Observable explain with youtube videos watching: - Cold Observable: 1 video title to 1 youtube user: When you start a KZitem video - you are the only watcher (subscriber) of that video - when another user starts the same video title , he gets his own video playing from beginining - Hot Observable: KZitem video streaming: 1 video stream - n possible users ( 0 to n subscriptions ) when you subscribe to a youtube video stream - you get the video stream from the time you subscribe to it (you could be late and get only the remaining streaming)
@frontend3409
Жыл бұрын
hot: movie on cinema, cold: movie on netflix
@hansschenker
Жыл бұрын
yes works also outside youtube - cold: on demand for me (on netflix) - hot: provided for whomever (provided anyway 0 or n cinema visitors (hopefully many )
@fintechtelugu6980
Жыл бұрын
Wow ease explanation
@3pleFly
Жыл бұрын
Always great to get more quality angular / rxjs content from you!!
@VitorSantana-n7l
6 ай бұрын
You are absolutely amazing!! Thanks a lot for the content :)
@renugupta5985
Жыл бұрын
Your content is awesome. Thanks for sharing. Love from India.
@DavidLacourt
Жыл бұрын
Wow exactly what I needed to understand my code! 🙏🏻 thanks
@SuperQuwertz
Жыл бұрын
Man, this is good stuff. Thank you so much!
@alan614
Жыл бұрын
This was great!
@abhishekburagohain3796
Жыл бұрын
I always thought a cold observable is one that emits after at least one subscription whereas a hot emits regardless. Thanks for the explanation. Looking forward to more videos.
@Ben-gq9tx
Жыл бұрын
@Abhishek Buragohain A hot Observable doesn't emit until subscribed either, it will just keep going *after* the last one unsubscribed 😉 Pretty easy to test with the angular httpClient (produces cold Observables) and pipe it to a shareReplay, making it hot. The request fires only after the first subscribe
@samucancld
Жыл бұрын
Great content mate 👍
@nakshi_ashik9181
Жыл бұрын
Man thank you, you just made something really confusing à lot less confusing, i'll definitely use this as à reference later.
@rahulxdd
Жыл бұрын
Hi Joshhua, thank you for this video. Do you have a complete rxjs series?
@JoshuaMorony
Жыл бұрын
I have a bunch of different RxJS videos on the channel but no proper "series"
@darknight9185
Жыл бұрын
thanks you for creating such awesome video
@masumulu
Жыл бұрын
Tnx a lot, it was very helpful, Clean expression 👍
@TravisSomaroo
Жыл бұрын
Great video Josh! Where can I find this on your github repo?
@colinstringer561
Жыл бұрын
Hey Josh, you seem to have missed the part where hot observables always emit values, and cold observables only emit once subscribed to?
@JoshuaMorony
Жыл бұрын
I wouldn't think of it exactly that way and it depends on the exact context. If we are using something like share() on an HttpClient observable then the result will be a hot observable, but it won't actually trigger the observable logic until it is subscribed to. If we are talking about a standard Subject as the hot observable, then nothing is triggered on subscribe because the logic to produce values is outside of the subject. This does allow us to trigger "next" even when there are no subscribers, but I don't know if it makes sense to think of it as always emitting because it won't actually be notifying any observers, we would essentially just be throwing values into the void. I would think of it more as that for a subject we are producing values independently of any subscribers to the subject.
@devnullsrevenge
Жыл бұрын
Well said
@CodingAbroad
Жыл бұрын
So an observable which is performing an http request would be a cold observable?
@JoshuaMorony
Жыл бұрын
Yes, every time you subscribe to it the request will be re-executed (unless you are using shareReplay as well)
@vitruvianeli
Жыл бұрын
The moment when you like the video in the middle, and then like it again at the end. But that second like basically unlikes it, so you press like button 3rd time :)
@frontend3409
Жыл бұрын
that was... not easy.
@Szergej33
Жыл бұрын
Use me as the Dislike button. (Do not click it, this video was awesome)
@CheesyOfCityOfHeroes
Жыл бұрын
rxjs = how to suck the fun out of coding.
@JoshuaMorony
Жыл бұрын
no no no, it's just sucking out all of the fun race conditions, stale data, and imperative coding induced bugs!
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