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