apollo-client/util/Observable.js

A simple yet functional GraphQL client.

import $$observable from 'symbol-observable';
function isSubscription(subscription) {
    return subscription.unsubscribe !== undefined;
}
var Observable = (function () {
    function Observable(subscriberFunction) {
        this.subscriberFunction = subscriberFunction;
    }
    Observable.prototype[$$observable] = function () {
        return this;
    };
    Observable.prototype.subscribe = function (observer) {
        var subscriptionOrCleanupFunction = this.subscriberFunction(observer);
        if (isSubscription(subscriptionOrCleanupFunction)) {
            return subscriptionOrCleanupFunction;
        }
        else {
            return {
                unsubscribe: subscriptionOrCleanupFunction,
            };
        }
    };
    return Observable;
}());
export { Observable };
//# sourceMappingURL=Observable.js.map