Observables are the essential elements of the Angular framework; you can’t do too many things without using them. An article by Gábor Soós.
While a Promise only emits the result once, Observables can emit multiple values over time.
The article is split into these sections:
- Promises
- Multiple results
- Synchronous execution
- Array methods
When learning Observables, the RxMarbles site can help to made them crystal clear. RxMarbles are graphical representations on a timeline describing the behavior of an Observable composition.
We liked: The subscriptions of an Observable will be executed synchronously after a value is passed in. Good read!
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