Function createReducerOperator

createReducerOperator<T>(
reducer: (acc: T, curr: T) => T,
defaultValue?: T,
): ReducerOperator<T>
Creates a ReducerOperator — an array reduce operator to a single value.
Type Parameters
- T
  — array element type
Parameters
- reducer: (acc: T, curr: T) => T
  — reduce function
- OptionaldefaultValue: T
  — default value for an empty array
Returns ReducerOperator<T>
Example
```
const op = createReducerOperator<number>((acc, curr) => acc + curr, 0);
op.apply([1, 2, 3]); // 6
op.apply([]); // 0
```
- Defined in factories.ts:858