cumulative summation of an array.
the returned array has its length increased by one.
import { assertEquals } from "jsr:@std/assert"// basic exampleconst arr1 = [10, 20, 30, 40, 50]const arr1_cum_sum = cumulativeSum(arr1)assertEquals(arr1_cum_sum, [0, 10, 30, 60, 100, 150]) Copy
import { assertEquals } from "jsr:@std/assert"// basic exampleconst arr1 = [10, 20, 30, 40, 50]const arr1_cum_sum = cumulativeSum(arr1)assertEquals(arr1_cum_sum, [0, 10, 30, 60, 100, 150])
cumulative summation of an array.
the returned array has its length increased by one.