const numArray = [20, 30, 34, 12, 3, 12, 2, 4, 5, 9, 4, 34, 1];

const numberSort = (array) => {
  let temp;
  for (let i = 0; i < array.length; i++) {
    for (let j = 0; j < array.length; j++) {
      if (array[i] > array[j]) {
        temp = array[i];
        array[i] = array[j];
        array[j] = temp;
      }
    }
  }
  return array;
};

const result = numberSort(numArray);
console.log(result);