The Array sort() method

• Array is sorted in place, and sorted array is returned.
• Default sort is in ascending order by converting each element to string.
• Custom sort order can be specified using a callback function compareFunction(a, b)
  • When function returns < 0, a appears before b in sorted array.
  • When function return 0, a and b remain unchanged with respect to each other.
  • When function returns > 0, b appears before a in sorted array.