Number.multiplyAll — API

Number.multiplyAllconsteffect/Number.ts:611

(collection: Iterable<number>): number

Takes an Iterable of numbers and returns their multiplication as a single number.

When to use

Use to multiply all numbers in an iterable.

Example (Multiplying an iterable)

import { Number } from "effect"
import * as assert from "node:assert"

assert.deepStrictEqual(Number.multiplyAll([2, 3, 4]), 24)

mathmultiply ReducerMultiply

Source effect/Number.ts:61110 lines

export const multiplyAll = (collection: Iterable<number>): number => {
  let out = 1
  for (const n of collection) {
    if (n === 0) {
      return 0
    }
    out *= n
  }
  return out
}