Function scan

scan<I, O>(accumulator, seed): 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, value) => O)
  - - (current, value): O
    - Parameters
      current: O
      value: I
      Returns O
- seed: O
Returns Operator<I, O>
- Defined in operators.ts:131

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