What is switchMap in RxJS?
An example of an AI chatbot conversation about switchMap operator in RxJS.
Can you explain what switchMap does in RxJS?
Sure! switchMap is an operator that projects each source value to an Observable, which is then merged in the output.
How is switchMap different from mergeMap?
The main difference is that switchMap cancels the previous inner Observable when a new value is emitted, while mergeMap does not.
Can you give me an example of using switchMap?
Absolutely! For instance, if you have a search input, switchMap can be used to fetch results from an API, canceling previous requests.
When should I use switchMap instead of other operators?
Use switchMap when you want to handle the latest emitted value and ignore previous ones, especially in scenarios like search.
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