Function _scan

_scan<T, TOut>(
    src: Iterable<T>,
    aggFunc: (prev: TOut, curr: T, idx: number) => TOut,
    seed: TOut,
): Iterable<TOut>
Produces the intermediate accumulator values of a reduction over the source iterable.
Type Parameters
- T
  Element type produced by the source iterable.
- TOut
  Accumulator result type when a distinct seed is supplied.
Parameters
- src: Iterable<T>
  Source iterable providing values for the running aggregation.
- aggFunc: (prev: TOut, curr: T, idx: number) => TOut
  Combiner invoked with the previous accumulator, current element, and current index.
- seed: TOut
  Optional initial accumulator; falls back to the first element when omitted.
Returns Iterable<TOut>
A deferred iterable yielding each intermediate accumulator value in evaluation order.
Throws
If seed is omitted and the source iterable is empty.
Example
```
const runningTotals = [..._scan([1, 2, 3], (prev, curr) => prev + curr, 0)];
console.log(runningTotals); // [1, 3, 6]
```
- Defined in src/transformers/scan.ts:21
_scan<T, _>(
src: Iterable<T>,
aggFunc: (prev: T, curr: T, idx: number) => T,
): Iterable<T>
Produces the intermediate accumulator values of a reduction over the source iterable.
Type Parameters
- T
  Element type produced by the source iterable.
- _
Parameters
- src: Iterable<T>
  Source iterable providing values for the running aggregation.
- aggFunc: (prev: T, curr: T, idx: number) => T
  Combiner invoked with the previous accumulator, current element, and current index.
Returns Iterable<T>
A deferred iterable yielding each intermediate accumulator value in evaluation order.
Throws
If seed is omitted and the source iterable is empty.
Example
```
const runningTotals = [..._scan([1, 2, 3], (prev, curr) => prev + curr, 0)];
console.log(runningTotals); // [1, 3, 6]
```
- Defined in src/transformers/scan.ts:26

Function _scan

Type Parameters

Parameters

Returns Iterable<TOut>

Throws

Example

Type Parameters

Parameters

Returns Iterable<T>

Throws

Example

Settings