Energy Trust of Oregon Dev, Treehouse Mentor, Maker
Open Source Hardware + RxJS =
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if you know C :( Arduino being worked on as we speak!
So new, it's 20 years old!
|Single return value
||Multiple return values|
|Object||Iterables (Array | Set | Map)|
The subscribe method returns a Disposable object that allows you to clean up the subscription when you're done
var source$ = Rx.Observable.range(1,4); //1,2,3,4 //map (select) & flatMap (selectMany): changes each value //flatMap returns an observable so it works well with async operations source$.map(x => x*2); //2, 4, 6, 8 //filter: returns only selected values based on custom logic source$.filter(x => x % 2 === 0); //2, 4 //reduce: performs a computation on the stream and outputs the final value source$.reduce((prev, curr) => prev + curr); //10 //scan: performs a computation on the stream but outputs intermittment values source$.scan((prev, curr) => prev + curr); //1, 3, 6, 10
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