Question - What is an Observable in RxJS?
Answer -
In RxJS, an observable is a function that is used to create an observer and attaches it to the source where values are expected from. For example, clicks, mouse events from a DOM element or an Http request, etc. afre the example of RxJS observable. Observable gives us the idea of an invokable collection of future values or events. It facilitates us to make asynchronous data streams using observable sequences or just called observables, too.
We have to follow the following three steps to complete the RxJS observable:
- Create Observable
- Subscribe Observable
- Execute Observable