import { EmptyError } from './util/EmptyError'; | |
import { SafeSubscriber } from './Subscriber'; | |
export function firstValueFrom(source, config) { | |
const hasConfig = typeof config === 'object'; | |
return new Promise((resolve, reject) => { | |
const subscriber = new SafeSubscriber({ | |
next: (value) => { | |
resolve(value); | |
subscriber.unsubscribe(); | |
}, | |
error: reject, | |
complete: () => { | |
if (hasConfig) { | |
resolve(config.defaultValue); | |
} | |
else { | |
reject(new EmptyError()); | |
} | |
}, | |
}); | |
source.subscribe(subscriber); | |
}); | |
} | |
//# sourceMappingURL=firstValueFrom.js.map |