Creates a Reducer by combining a copy of the given reducer for each output name in the given list. If the reducer has a single output, the output names are used as-is; otherwise they are prefixed to the original output names.
| Usage | Returns |
|---|---|
Reducer.forEach(outputNames) | Reducer |
| Argument | Type | Details |
|---|---|---|
this: reducer | Reducer | |
outputNames | List |