What is the reduce operator in RxJS?

What is the reduce operator in RxJS?

The reduce operator in RxJS is used to accumulate values over time, similar to the reduce function in JavaScript arrays.

Can you give me an example of how to use it?

Sure! Here's a simple example: source$.pipe(reduce((acc, value) => acc + value, 0)) sums up all emitted values.

What types of values can I reduce?

You can reduce any type of values, such as numbers, objects, or even strings, depending on your use case.

Are there any performance considerations I should be aware of?

Yes, using reduce can lead to performance issues if the source observable emits a large number of values, as it holds all emitted values in memory.