javascript - How can I use .reduce() to add all of the values within a nested array?

Question

I'm fairly new to using .reduce() and am wondering what the best to find the sum of all of the numbers inside myArr would be.

const myArr = [ [ 10, 0 ], [ 10, 0 ], [ 2, 4 ], [ 2, 4 ] ]

Answer 1

You could flatten the array and then sum

const myArr = [
  [10, 0],
  [10, 0],
  [2, 4],
  [2, 4]
]

console.log(
  myArr.flat().reduce((acc, curr) => acc + curr, 0)
)