Function scan

scan<I, O>(accumulator: (current: O, value: I) => O, seed: O): Operator<I, O>
Operator that runs with the latest and the current value of a node. Works like the RxJS scan operator.
Type Parameters
- I
- O
Parameters
- accumulator: (current: O, value: I) => O
- seed: O
Returns Operator<I, O>
- Defined in operators.ts:145