Enhancing user experiences with reactive extensions tccc10
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Enhancing user experiences with reactive extensions tccc10
- 1. Enhancing User Experiences With Reactive Extensions Bryan Anderson
- 2. What is Rx? Reactive Extensions are a set of extension methods that allow you to compose and operate on streams with LINQ operators in the same way you would a list.
- 3. Compose and operate on streams? Sounds like it’s time for me to take a nap.
- 4. Streams? A stream can be thought of as a list of events that take place over time.
- 5. Compose? Sticking functions together, like Legos. Say we have two functions f and g. Math: f(g(x)) Unix: x | g | f
- 6. What is Rx? Reactive Extensions are a set of extension methods that allow you to compose and operate on streams with LINQ operators in the same way you would a list.
- 7. It’s too early to think abstractly and a nap sounds really good right now.
- 8. IObservable vs IEnumerable IObservable and IEnumerable are mathematical duals. Which just means they’re equivalent. Every IEnumerable could be turned into an IObservable and vice-versa (with enough time).
- 9. If they’re equivalent what does IObservable give us?
- 10. IObservable vs IEnumerable IEnumerable let’s you pull items from it. IObservable pushes items to you.
- 11. IObservable vs IEnumerable When it comes down to it IObservable = IEnumerable + Time
- 12. Marble Diagrams Running observable: Completed normally: Completed with an exception: Input goes above output:
- 13. I think you’ve lost your marbles.
- 14. Questions so far? Please feel free to ask questions as we go.
- 15. The LINQ you’re used to Common LINQ queries work the same Select Where First Skip Take
- 16. Time adds more options Throttle Delay BufferWithTime, BufferWithCount Scan Zip, Merge, CombineLatest
- 17. Dude, this is a CODE camp. You need to stop talking and show me some code!
- 18. Questions? I love feedback! Bryan Anderson bryan.anderson@ilmservice.com @SolaAesir
Editor's Notes
- I knew I shouldn’t have let my snarky audience member personality add his own slides…
- Where Rx is concerned a stream is anything that implements IObservable.
- Scan == Accumulate with intermediate values kicked out
- Stuff I didn’t get to make examples forPub/SubTestingSynced Observable Collections