wishthis/node_modules/rxjs/dist/esm5/internal/observable/using.js

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2022-06-08 10:36:39 +00:00
import { Observable } from '../Observable';
import { innerFrom } from './innerFrom';
import { EMPTY } from './empty';
export function using(resourceFactory, observableFactory) {
return new Observable(function (subscriber) {
var resource = resourceFactory();
var result = observableFactory(resource);
var source = result ? innerFrom(result) : EMPTY;
source.subscribe(subscriber);
return function () {
if (resource) {
resource.unsubscribe();
}
};
});
}
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