ReactiveX originated at Microsoft to simplify concurrent programming and evolved into libraries like RxJava at Netflix and the widely used RxJS.
RxJS version 5.5 introduced the pipe function, decoupling operators from the observable object and enabling developers to create their own.
Using RxJS extensively in a Node.js backend led to long, unreadable pipelines, which were improved by extracting logic into named functions.
The flatZipMap operator was created to solve the problem of losing access to previous values in a stream by pairing results into a tuple.
Creating a custom operator involves defining a function that returns an OperatorFunction with specific input and output types using TypeScript generics.
Complex operators like flatListFlatMap demonstrate how advanced TypeScript features like ObservableInput and ObservedValueOf are essential for correct type inference.
The Q&A session covers unit testing custom operators, handling errors, key differences with RxJava, and how to contribute to open-source RxJS libraries.
50:18Georgi Parlakov
26:58Marko Stanimirović
58:03Daniela Bonvini
50:28Benedikt Starzengruber
43:20Michael Hladky & Stefan Baumgartner
51:04Noam Honig
33:25Jan-Niklas Wortmann
50:57Manfred Steyer
Jobs that call for the skills explored in this talk.
doinstruct Software GmbH
Berlin, Germany
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CodeGuild
Amsterdam, Netherlands
Amadeus FiRe AG