Type Alias IterReduceCallbackFn<T, R>

IterReduceCallbackFn: (
    previousValue: T | R,
    currentValue: T,
    currentIndex: number,
    iter: Iterator<T>,
) => R

Callback signature for iterReduce.

Type Parameters

T
R = T

Type Declaration

- (
      previousValue: T | R,
      currentValue: T,
      currentIndex: number,
      iter: Iterator<T>,
  ): R
- Parameters
  - previousValue: T | R
  - currentValue: T
  - currentIndex: number
  - iter: Iterator<T>
  Returns R

Since

0.15.0

Example

const sum: IterReduceCallbackFn<number, number> = (previous, value) => (previous as number) + value;