wed
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Wed is a schema-aware editor for XML documents.
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JavaScript
define(function(require,exports,module){
import { Observable } from '../Observable';
import { from } from './from';
import { isArray } from '../util/isArray';
import { EMPTY } from './empty';
/* tslint:enable:max-line-length */
/**
* When any of the provided Observable emits an complete or error notification, it immediately subscribes to the next one
* that was passed.
*
* <span class="informal">Execute series of Observables no matter what, even if it means swallowing errors.</span>
*
* <img src="./img/onErrorResumeNext.png" width="100%">
*
* `onErrorResumeNext` Will subscribe to each observable source it is provided, in order.
* If the source it's subscribed to emits an error or completes, it will move to the next source
* without error.
*
* If `onErrorResumeNext` is provided no arguments, or a single, empty array, it will return {@link EMPTY}.
*
* `onErrorResumeNext` is basically {@link concat}, only it will continue, even if one of its
* sources emits an error.
*
* Note that there is no way to handle any errors thrown by sources via the resuult of
* `onErrorResumeNext`. If you want to handle errors thrown in any given source, you can
* always use the {@link catchError} operator on them before passing them into `onErrorResumeNext`.
*
* @example <caption>Subscribe to the next Observable after map fails</caption>
* import { onErrorResumeNext, of } from 'rxjs/create';
* import { map } from 'rxjs/operators';
*
* onErrorResumeNext(
* of(1, 2, 3, 0).pipe(
* map(x => {
* if (x === 0) throw Error();
* return 10 / x;
* })
* ),
* of(1, 2, 3),
* )
* .subscribe(
* val => console.log(val),
* err => console.log(err), // Will never be called.
* () => console.log('done')
* );
*
* // Logs:
* // 10
* // 5
* // 3.3333333333333335
* // 1
* // 2
* // 3
* // "done"
*
* @see {@link concat}
* @see {@link catch}
*
* @param {...ObservableInput} sources Observables (or anything that *is* observable) passed either directly or as an array.
* @return {Observable} An Observable that concatenates all sources, one after the other,
* ignoring all errors, such that any error causes it to move on to the next source.
*/
export function onErrorResumeNext(...sources) {
if (sources.length === 0) {
return EMPTY;
}
const [first, ...remainder] = sources;
if (sources.length === 1 && isArray(first)) {
return onErrorResumeNext(...first);
}
return new Observable(subscriber => {
const subNext = () => subscriber.add(onErrorResumeNext(...remainder).subscribe(subscriber));
return from(first).subscribe({
next(value) { subscriber.next(value); },
error: subNext,
complete: subNext,
});
});
}
//# sourceMappingURL=onErrorResumeNext.js.map
return module.exports;
});