javascript - `reduce` equivalent for summing values of an iterator

Question

Is there an equivalent of Array.reduce to sum up values of an iterator?

Consider the below Map whose values method returns an iterator:

let subjectMarks = new Map([['eng', 78], ['math', 98], ['sci', 87]])
> subjectMarks.values()
[Map Iterator] { 78, 98, 87 }

How do I get the total marks i.e sum of subjectMarks values?

I know this can be achieved using a for...of loop but I am looking for a more "functional" approach, something similar to the sum function in Python or reduce method in Javascript.

Answer 1

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