Function reduce

reduce<T, S, Context>(arr, cb, memo?, context?): S
Type Parameters
- T
- S
- Context
Parameters
- arr: readonly T[]
- cb: ((this, previousValue, currentValue, currentIndex?, arr?) => S)
  - - (this, previousValue, currentValue, currentIndex?, arr?): S
    - Parameters
      this: Context
      previousValue: S
      currentValue: T
      Optional currentIndex: number
      Optional arr: readonly T[]
      Returns S
- Optional memo: S
- Optional context: Context
Returns S