17 lines
576 B
JavaScript
17 lines
576 B
JavaScript
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import { operate } from '../util/lift';
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import { createOperatorSubscriber } from './OperatorSubscriber';
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export function defaultIfEmpty(defaultValue) {
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return operate((source, subscriber) => {
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let hasValue = false;
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source.subscribe(createOperatorSubscriber(subscriber, (value) => {
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hasValue = true;
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subscriber.next(value);
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}, () => {
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if (!hasValue) {
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subscriber.next(defaultValue);
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}
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subscriber.complete();
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}));
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});
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}
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//# sourceMappingURL=defaultIfEmpty.js.map
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