JS: How to count all values in nested array

Question

I'm using a nested array like this:

const data = [
  [0],
  [2],
  [[1], 3]
  1
]

Is it possible to count all values together. In this example the result should be 7 (0+2+1+3+1). And is it also possible to count how many arrays are used? This would be 5 arrays

score 8 · Accepted Answer · answered Jan 19 '18 at 13:41

8

 const sumUp = array => array.reduce((sum, el) => sum + (Array.isArray(el) ? sumUp(el) : +el), 0);

This uses a recursive approach with reduce.

answered Jan 19 '18 at 13:41

Jonas Wilms

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Is it possible to count also the arrays? – user3142695 Jan 19 '18 at 13:42
1

Yes it is. May try that yourself? ;) – Jonas Wilms Jan 19 '18 at 13:43

JS: How to count all values in nested array

1 Answers1