sum

​

Basic usage

Given an array of items, and an optional function to map each item to a number, add up all the items.

import { sum } from 'radash'

const fish = [
  {
    name: 'Marlin',
    weight: 100
  },
  {
    name: 'Bass',
    weight: 10
  },
  {
    name: 'Trout',
    weight: 15
  }
]

sum(fish, f => f.weight) // => 125