For of loops

Average rating

Let's see how we'd us for ... each to refactor the average rating function.

js

function average(arr) {
  let total = 0

  for (let x of arr) {
    total += x
  }

  return total / arr.length
}

const ratings = [4.25, 3.34, 2.6, 2.74, 2.36, 2.32, 3.94, 2.73]
console.log(average(ratings))

output

3.035

TIP

We chose the name x here to name the current array element, but any variable name is fine.