Maths
sum

Calculates the sum of values in the given array.

Syntax

import { sum } from '@opentf/std';
 
sum(
  arr: number[] = [],
  cb?: (val: number, index: number) => number
): number

Examples

sum() //=> 0
 
sum([]) //=> 0
 
sum([1]) //=> 1
 
sum([1, -1]) //=> 0
 
sum([-1, -2]) //=> -3
 
sum([1, 2, 3, 4, 5]) //=> 15
 
sum([1.2, Math.PI]) //=> 4.34
 
sum([1, 2, 3, 4, 5.4], Math.round) //=> 15
 
const objects = [{ n: 4 }, { n: 2 }, { n: 8 }, { n: 6 }];
sum(objects, (v) => v.n) //=> 20
 
sum(objects, (v, i) => v.n * i) //=> 36
 
sum([Infinity, Infinity]) //=> Infinity

Try

prodisNegZero