If you are an Angular developer, you might be familiar with the concept of Observable, which is a way of handling asynchronous data streams in your application. Observable allows you to subscribe to data changes and react accordingly, using operators like map, filter, switchMap, etc. Observable is a powerful tool for managing complex and dynamic data flows, but it also comes with some drawbacks, such as:

• You have to manually unsubscribe from the Observable when you are done with it, otherwise you might create memory leaks or unwanted side effects.

• You have to deal with error handling and retry logic in case the Observable fails or emits an error value.

• You have to use RxJS library, which adds some extra weight and complexity to your codebase.

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