Discussion on: Are one-liners always the best solutions?

[Nicolas Torres]

And if you really want the best possible perfs, the best option is to iterate once.

It could go like that:

let count = 0;
for (let i = 0, max = 0, n = arr.length; i<n; i++) {
  if (arr[i] > max) {
    max = arr[i];
    count = 1;
  } else if (arr[i] === max) {
    count++;
  }
}
return count;