| Usage | Returns |
|---|---|
ee.Reducer.toCollection(propertyNames, numOptional) | Reducer |
| Argument | Type | Details |
|---|---|---|
propertyNames | List | The property names that will be defined on each output feature; determines the number of reducer inputs. |
numOptional | Integer, default: 0 | The last numOptional inputs will be considered optional; the other inputs must be non-null or the input tuple will be dropped. |