ui/node_modules/rxjs/dist/esm5/internal/observable/race.js

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);
        }
    };
}
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