# onErrorResumeNext

Continues an observable sequence that is terminated normally or by an exception with the next observable sequence or Promise.

## Arguments

1. `second` _(`Observable` | `Promise`)_:  Second observable sequence used to produce results after the first sequence terminates.

## Returns

_(`Observable`)_: An observable sequence that concatenates the first and second sequence, even if the first sequence terminates exceptionally.

## Example
