Top "Observable" questions

An observable is typically a programming construct that can be "watched" by other parts of the code, called the "observers". Different frameworks and programming languages have different implementations for observables, so this tag should typically be used in conjunction with others.

Promise.all behavior with RxJS Observables?

In Angular 1.x I would sometimes need to make multiple http requests and do something with all the responses. I …

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fromPromise does not exist on type Observable

In Angular 2 using rxjs I was trying to convert a Promise to Observable. As many of online guides showed I …

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How to return value inside subscribe Angular 4

I'm new to observables in angular. I have a problem wanting to return a value inside a subscribe method. I …

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create Observable<T> from result

I am trying Angular2. I noticed that the http service use Observable object instead of Promise (I don't like much …

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KnockoutJS - Observable Array of Observable objects

I would like to display an editable list of items, each item of which is editable (kind of like an …

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Difference between Java 8 streams and RxJava observables

Are Java 8 streams similar to RxJava observables? Java 8 stream definition: Classes in the new java.util.stream package provide a …

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Angular 6 / Rxjs - how to basics: observables success, error, finally

I'm building an architecture on latest Angular 6 and coming from AngularJS there's something I can't make peace about: the basic …

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rxjs flatmap missing

I try to chain multiple rx.js observables and pass the data. Flatmap should be the fitting operator but with …

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Angular 2 - Return data directly from an Observable

I've been banging my head against this one trying to figure it out, and no amount of documentation I've been …

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Is it a good practice using Observable with async/await?

I am using angular 2 common http that return an Observable, but I face with a problem that my code likes …

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