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Relationship between rxJava and promises

I am trying to tie rxJava with what I already know, especially from JavaScript programming. Is the main idea behind rxJava as promises for observables?

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As the comment explains, a promise will let you chain the operation, but you end up with one result.

With RxJava, you can get notified multiple times and then get multiple results.



A Promise can be thought of as an async operation and an Observable as an async * operation.

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