SolutionKata1.js

// first we need to know is the array sorted

// the array can be sorted both ascending and descending
// can we check both at the same time ?
// first lets just check if they're sorted.
function isArraySorted(array) {
  let isSortedDescending = true;
  let isSortedAscending = true;
  // descending
  for (let i = 0; i < array.length; i = i + 1) {
    if (i === 0) continue;
    if (array[i] > array [i -1]) {
      isSortedDescending = false;
    }
  }
  // ascending
  for (let i = 0; i < array.length; i = i + 1) {
    if (i === 0) continue;
    console.log(array[i]);
    if (array [i] < array [ i - 1]) {
      isSortedAscending = false;
    }
  }
  return { isSortedDescending, isSortedAscending };
}

function isSortedAndHow(array) {
  const { isSortedDescending, isSortedAscending } = isArraySorted(array);
  if (!isSortedDescending && !isSortedAscending) return 'no';
  if (isSortedDescending) return 'yes, descending';
  return 'yes, ascending';
}