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Angular Map Observable To Another Observable
The scenario like this is an ideal use case for concatmap. As this tutorial will now cover routing, let’s skip it by typing and followed by enter. Forkjoin can be comparable to promise.all ().
Typescript - Calling Another Observable With The Response Of Another In Angular 4 - Stack Overflow from stackoverflow.com
The simplest way to create an observable in angular is to use the observable constructor. We can use the pipe as a standalone method, which helps us to reuse it at multiple places or as an instance method. In regard to other answers, this solution works even if the source is cold.
I have an angular service that returns from the backend an observable defined as:
Observable.subscribe(x => { //do something with the data here }); In regard to other answers, this solution works even if the source is cold. Use switch () to transform b observable to. It applies a project function to each of the values emitted by the source observable and transforms it into a new value.
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