rx-combine-latest-obj
v1.0.2
Published
A convenient flavor of Rx.Observable.combineLatest to return an object
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combineLatestObj
for RxJS
npm install rx-combine-latest-obj
Usage
Given these observables:
const a$ = Rx.Observable.interval(50).take(3);
const b$ = Rx.Observable.just('Boston');
const c$ = Rx.Observable.just('Colorado');
Make an observable which is the combination of them, bundled as an object.
import combineLatestObj from 'rx-combine-latest-obj';
const state$ = combineLatestObj({a$, b$, c$});
// or const state$ = combineLatestObj({a: a$, b: b$, c: c$});
state$.subscribe(x => console.dir(x));
// {a: 0, b: 'Boston', c: 'Colorado'}
// {a: 1, b: 'Boston', c: 'Colorado'}
// {a: 2, b: 'Boston', c: 'Colorado'}
It takes Cycle.js' hungarian notation $
into consideration, returning an object whose keys don't have the $.
The above is more convenient than writing:
var stateAlt$ = Rx.Observable.combineLatest(
a$, b$, c$, (a, b, c) => ({a, b, c})
);