rxjs
Version:
Reactive Extensions for modern JavaScript
22 lines • 966 B
JavaScript
import { ConnectableObservable } from '../observable/ConnectableObservable';
import { hasLift, operate } from '../util/lift';
import { isFunction } from '../util/isFunction';
export function multicast(subjectOrSubjectFactory, selector) {
var subjectFactory = isFunction(subjectOrSubjectFactory) ? subjectOrSubjectFactory : function () { return subjectOrSubjectFactory; };
if (isFunction(selector)) {
return operate(function (source, subscriber) {
var subject = subjectFactory();
selector(subject).subscribe(subscriber).add(source.subscribe(subject));
});
}
return function (source) {
var connectable = new ConnectableObservable(source, subjectFactory);
if (hasLift(source)) {
connectable.lift = source.lift;
}
connectable.source = source;
connectable.subjectFactory = subjectFactory;
return connectable;
};
}
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