Function tapError

tapError<T, E>(
ra: ResultAsyncType<T, E>,
fn: (error: E) => void | Promise<void>,
): ResultAsyncType<T, E>
Run a side effect on the error without altering the result. Useful for logging failures without interrupting the pipeline.

Dual API — works data-first or curried for use in pipe.
Type Parameters
- T
- E
Parameters
- ra: ResultAsyncType<T, E>
- fn: (error: E) => void | Promise<void>
Returns ResultAsyncType<T, E>
Example
```
pipe(
    chargeCard(order),
    ResultAsync.tapError(e => logger.error("charge failed", e)),
  )
```
- Defined in result-async/transform.ts:155
tapError<E>(
fn: (error: E) => void | Promise<void>,
): <T>(ra: ResultAsyncType<T, E>) => ResultAsyncType<T, E>
Run a side effect on the error without altering the result. Useful for logging failures without interrupting the pipeline.

Dual API — works data-first or curried for use in pipe.
Type Parameters
- E
Parameters
- fn: (error: E) => void | Promise<void>
Returns <T>(ra: ResultAsyncType<T, E>) => ResultAsyncType<T, E>
Example
```
pipe(
    chargeCard(order),
    ResultAsync.tapError(e => logger.error("charge failed", e)),
  )
```
- Defined in result-async/transform.ts:159