32 lines
1.2 KiB
JavaScript
32 lines
1.2 KiB
JavaScript
import { Observable } from '../Observable';
|
|
import { innerFrom } from './innerFrom';
|
|
import { argsOrArgArray } from '../util/argsOrArgArray';
|
|
import { createOperatorSubscriber } from '../operators/OperatorSubscriber';
|
|
export function race() {
|
|
var sources = [];
|
|
for (var _i = 0; _i < arguments.length; _i++) {
|
|
sources[_i] = arguments[_i];
|
|
}
|
|
sources = argsOrArgArray(sources);
|
|
return sources.length === 1 ? innerFrom(sources[0]) : new Observable(raceInit(sources));
|
|
}
|
|
export function raceInit(sources) {
|
|
return function (subscriber) {
|
|
var subscriptions = [];
|
|
var _loop_1 = function (i) {
|
|
subscriptions.push(innerFrom(sources[i]).subscribe(createOperatorSubscriber(subscriber, function (value) {
|
|
if (subscriptions) {
|
|
for (var s = 0; s < subscriptions.length; s++) {
|
|
s !== i && subscriptions[s].unsubscribe();
|
|
}
|
|
subscriptions = null;
|
|
}
|
|
subscriber.next(value);
|
|
})));
|
|
};
|
|
for (var i = 0; subscriptions && !subscriber.closed && i < sources.length; i++) {
|
|
_loop_1(i);
|
|
}
|
|
};
|
|
}
|
|
//# sourceMappingURL=race.js.map
|