check_same_case.md

Check same case

Description

Write a function that will check if two given characters are the same case.

• If either of the characters is not a letter, return -1
• If both characters are the same case, return 1
• If both characters are letters, but not the same case, return 0

Examples

'a' and 'g' returns 1
'A' and 'C' returns 1
'b' and 'G' returns 0
'B' and 'g' returns 0
'0' and '?' returns -1

My Solution

def same_case(a, b)
  if [a,b].all?(/[[:alpha:]]/)
    a.match?(/[A-Z]/) == b.match?(/[A-Z]/) ? 1 : 0
  else
    -1
  end
end