import { catchError as higherOrder } from '../operators/catchError'; /** * Catches errors on the observable to be handled by returning a new observable or throwing an error. * * * * @example Continues with a different Observable when there's an error * * Observable.of(1, 2, 3, 4, 5) * .map(n => { * if (n == 4) { * throw 'four!'; * } * return n; * }) * .catch(err => Observable.of('I', 'II', 'III', 'IV', 'V')) * .subscribe(x => console.log(x)); * // 1, 2, 3, I, II, III, IV, V * * @example Retries the caught source Observable again in case of error, similar to retry() operator * * Observable.of(1, 2, 3, 4, 5) * .map(n => { * if (n === 4) { * throw 'four!'; * } * return n; * }) * .catch((err, caught) => caught) * .take(30) * .subscribe(x => console.log(x)); * // 1, 2, 3, 1, 2, 3, ... * * @example Throws a new error when the source Observable throws an error * * Observable.of(1, 2, 3, 4, 5) * .map(n => { * if (n == 4) { * throw 'four!'; * } * return n; * }) * .catch(err => { * throw 'error in source. Details: ' + err; * }) * .subscribe( * x => console.log(x), * err => console.log(err) * ); * // 1, 2, 3, error in source. Details: four! * * @param {function} selector a function that takes as arguments `err`, which is the error, and `caught`, which * is the source observable, in case you'd like to "retry" that observable by returning it again. Whatever observable * is returned by the `selector` will be used to continue the observable chain. * @return {Observable} An observable that originates from either the source or the observable returned by the * catch `selector` function. * @method catch * @name catch * @owner Observable */ export function _catch(selector) { return higherOrder(selector)(this); } //# sourceMappingURL=catch.js.map