Exercise 112

• Create a new index112.js file
• Define a showNumbers function that accepts two numeric parameters: start and end
• The showNumbers function will show all the numbers between the start and end numbers
• If start is bigger than the second one show the numbers from higher to lower
• If start is smaller than the second one then show the numbers from lower to higher
• Call the showNumbers function using the following parameters:
  • start: 0, end: 1000
  • start: 1000, end: 0
  • start: 100, end: 100
  • start: "100", end: 300
• Find a way to deal with the following scenarios:
  • start and end are the same number
  • parameters that aren't numbers