stafa-san

const wholeNumbers = new Set();
function getUniqueSortedNumbers(arr) {
  for (words in arr) {
    if (typeof arr[words] === 'number') {
      wholeNumbers.add(arr[words]);
    }
    getUniqueSortedNumbers(arr[words]);
  }
  return Array.from(wholeNumbers).sort();
}

stafa-san

console.log(3, typeof(3)); // 3 "number"
console.log("a", typeof("a")); // "a" "string"
console.log(2, typeof(2), "a", typeof(2)); // 2 "number" "a" "string"