perfect .. great job keep going

I love to thank you 100 times, a very straight and sweet explanation.

You are doing a great job man... please continue❤️❤️

I am rarely impressed but you are doing a great job. You have jus made my day. Thank you and keep it up sir

Need to comment cause I didn´t on the other videos, great lecture! Straight to the point simple examples and easy to understand, you helped me a lot!

You have explained a very well and really helped me to understand the concept

Great content, this really helped me to understand that stuff

Thats great video. Thanks

thank you for you your way to explain is great keep going

Excellent content ♥. Thank you.

Iam confused with semicolon..y there is no semicolon inside the call back function in myobservable

Tremendous!

Thanks for your pedagogie , Code source Plz .

you are excellent teacher thank

@procademy

2 жыл бұрын

Thank you 🙂

Since the old way of subscribing an observable( using callback) is deprecated , I am implementing using new ways i.e. subscribe({ next(value) { console.log(value); this.isLoading = true; }, error(err) { console.log(err); }, But i am unable to access my class variable inside next/error method as this is now referring something else.. can you please suggest how can i access this to use class properties? Although when i set strict mode to false the issue resolved can anyone please help me with concept?

can you create a school admin panel using angular 14..

looks like new Angular 13 and up has deprecated the subscribe method, now you have to use with the object subscribe({next:(),error:(),complete:()})

How do you handle the error randomly since we are emitting data in a chunk .. how do we know when to check if the error is occurred ?. Does it mean we have to check error method in every next method . Please explain

@procademy

2 жыл бұрын

You need to pass a second callback function to subscribe method. This callback function will be executed whenever the observable throws an error. For example, let's say you are requesting some data from the server e.g. list of products. So, observable will emit the data in chunks. Now in between, for some reason let's say internet connection is lost. So, now getting the rest of the data from the server is not possible. In that case observable will emit an error that will be handled by second callback function of subscribe. Its always a good practice to specify the second callback function of subscribe method to handle error i.e. we should always check if the error has occurred by providing second callback function to subscribe method. Hope it answered your question.

@nuadoixaxunuadoixaxu2182

2 жыл бұрын

Got It. Thanks Sir

Finally, a tutorial that works! Please how can I make the results display on the web page and not in the console log?

@procademy

2 жыл бұрын

Instead of using console.log, you can use html elements to show the result in webpage. For example, let's say you have an observable "obs" which is emitting a value 10. So in the component.html file, let's say we use paragraph to display the value like {{obs}}. Something like this you can do. I will try to cover this topic in a video to make it clear 😊

@tayotosin5792

2 жыл бұрын

@@procademy Yes I did exactly this, but the page was showing only one number, how do I make it display all 5 numbers like you did in the console.log? Thank you!

@procademy

2 жыл бұрын

@@tayotosin5792 It is displaying only one number because, in order to display next emited value, the page needs to be re-rendered. When your page is loading, at that time only one value was emitted. After that, when next value was emiited, since page is not re-rendering, it is not showing the next available data. Here, we need to understand the state management in angular. For that, we use RxJS. I have not covered this topic yet. but i am planning to cover this topic in future.

@tayotosin5792

2 жыл бұрын

@@procademy okay. Thank you Pro, I really appreciate this!

subscribe keyword looks deprecated, how can we resolve it ?

@procademy

2 жыл бұрын

You mean to say... subscribe method is showing error: "subscribe keyword is deprecated" is that right? Can you please include the code which you are using??

@maneshwar3054

Жыл бұрын

@@procademy In general it is recommended only to use the anonymous function if you only specify the next callback otherwise we recommend to pass an Observer import { of } from 'rxjs'; // recommended of([1,2,3]).subscribe((v) => console.info(v)); // also recommended of([1,2,3]).subscribe({ next: (v) => console.log(v), error: (e) => console.error(e), complete: () => console.info('complete') })