Reactive Programming
Some Definitions
- Reactive Programming
- Reactive programming is programming with asynchronous data streams - André Staltz
- Streams
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Information that is ordered in time
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Emit values, errors, or completion
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Immutable
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Why should you care?
A: You're already using it!
A: It's how the world works
A: It's the new hotness
A: It's more robust
Time & Safety
How do I use it?!
How do I use it?!
- Microsoft Reactive Extensions (RxJS)
- Bacon.js
- Cycle.js
- Elm
- ...And many more!
const Rx = require('rxjs/Rx')
const source = Rx.Observable.interval(1000);
const subscription1 = source.subscribe(
x => console.log('Observer 2: onNext: ' + x),
e => console.log('Observer 1: onError: ' + e.message),
() => console.log('Observer 1: onCompleted'));
const subscription2 = source.subscribe(
x => console.log('Observer 2: onNext: ' + x),
e => console.log('Observer 2: onError: ' + e.message),
() => console.log('Observer 2: onCompleted'));
setTimeout(() => {
subscription2.unsubscribe();
subscription1.unsubscribe();
}, 5000);