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20 lines
591 B
JavaScript
20 lines
591 B
JavaScript
/** PURE_IMPORTS_START _Observable,_from,_empty PURE_IMPORTS_END */
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import { Observable } from '../Observable';
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import { from } from './from';
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import { empty } from './empty';
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export function defer(observableFactory) {
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return new Observable(function (subscriber) {
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var input;
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try {
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input = observableFactory();
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}
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catch (err) {
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subscriber.error(err);
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return undefined;
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}
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var source = input ? from(input) : empty();
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return source.subscribe(subscriber);
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});
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}
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//# sourceMappingURL=defer.js.map
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