Find the smallest number in an array in JS

arr-min.js

function min(arr) {
  if (!arr) return NaN;

  let min = Number.MAX_VALUE;
  for (const element of arr) {
    if (element < min) {
      min = element;
    }
  }
  return min;
}

console.log(min([2, 0, 42, 222, -4096]));
console.log(min([]));