What's the opposite of chr() in Ruby?

Question

In many languages there\'s a pair of functions, chr() and ord(), which convert between numbers and character values. In some languages, ord()

Answer 1

In Ruby up to and including the 1.8 series, the following will both produce 65 (for ASCII):

puts ?A
'A'[0]

The behavior has changed in Ruby 1.9, both of the above will produce "A" instead. The correct way to do this in Ruby 1.9 is:

'A'[0].ord

Unfortunately, the ord method doesn't exist in Ruby 1.8.