Programming Concepts and Paradigms

This repository holds our school project about reactive programming with reactiveX. We choose JavaScript/TypeScript to demonstrate how observables, observers and operators work.

Reactive programming background

• Basics idea: asynchronous data streams

  

  Observable

Observers

• Hot vs. cold observables
  • COLD is when your observable creates the producer

    // COLD
    var cold = new Observable((observer) => {
    var producer = new Producer();
    // have observer listen to producer here
    });

  • HOT is when your observable closes over the producer

    // HOT
    var producer = new Producer();
    var hot = new Observable((observer) => {
    // have observer listen to producer here
    });

    Subjects

• Async Subject
• Behavior Subject
• Replay Subject

Operators

RxMarbels

Standard Operators

• Map
• Filter
• Scan
• SwitchMap
• MergeMap
• combineLatest
• take

Backpressure Operators

• Throtteling
• Buffering
• Debounce
• Windows

Languages

• RxJS
• RxJava

Notes

• http://reactivex.io/rxjs/manual/tutorial.html#external-references
• http://reactivex.io/
• https://medium.com/@benlesh/hot-vs-cold-observables-f8094ed53339
• https://rxviz.com/examples/grouped-fibonacci

Run the examples

To run the examples make sure you have node.js(tested Version 8.9.3LTS) installed on your system. Run npm install to install the dependencies and run the examples in the console with "node ./src/.js