Asked by: Odilo Cedrunasked in category: General Last Updated: 27th May, 2020
Are observables asynchronous?
Keeping this in view, are observables synchronous?
Observables can either be asynchronous or synchronous depending on the underlying implementation. An example of an asynchronous observable is one that wraps an http call. However when you are dealing with simple next-ing of values from a subject, the values will be received synchronously.
Furthermore, what is the difference between promises and observables? We could also say that the main difference between a promise and an observable is that a promise emits only a single value, whereas an observable emits multiple values.
Similarly, is RxJS asynchronous?
Is subscribe asynchronous?
As you may know, subscriptions are used to handle async method call. Thus, the code inside the subscribe() method is executed only when the async method return its result (after a http call for instance). While waiting for the async response, the program continues and execute the following code.