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- import { Observable } from '../Observable';
- import { from } from './from';
- import { empty } from './empty';
- export function defer(observableFactory) {
- return new Observable(subscriber => {
- let input;
- try {
- input = observableFactory();
- }
- catch (err) {
- subscriber.error(err);
- return undefined;
- }
- const source = input ? from(input) : empty();
- return source.subscribe(subscriber);
- });
- }
- //# sourceMappingURL=defer.js.map
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