Когда использовать switchMap и concatMap в RxJS программировании?

switchMap cancels the previous inner Observable and switches to a new one upon receiving a new value from the outer Observable. It is used when only the result of the latest request or operation matters, for example, in autocomplete input fields.

concatMap executes inner Observables sequentially, one after another, in the order they were emitted by the outer Observable, waiting for the current one to complete before subscribing to the next. It is used when it is important to preserve the order of operations and wait for each to complete, such as in a series of data write requests.

Operator	Order	Cancels previous	Applicability
switchMap	Parallel, but with cancellation	Yes	Autocomplete search, cancel previous operation
concatMap	Sequential	No	Series of requests maintaining order, operations that cannot be canceled