Create Phone Number.rb

=begin
Write a function that accepts an array of 10 integers (between 0 and 9),
that returns a string of those numbers in the form of a phone number.

Example:

createPhoneNumber(Array[1, 2, 3, 4, 5, 6, 7, 8, 9, 0]) # => returns "(123) 456-7890"

The returned format must be correct in order to complete this challenge.
Don't forget the space after the closing parenthesis!

alternative solution (not mine)

def createPhoneNumber(numbers)
  "(%d%d%d) %d%d%d-%d%d%d%d" % numbers
end

d comes from link: http://ruby-doc.org/core-2.2.3/Kernel.html#method-i-sprintf

=end

def createPhoneNumber(numbers)

	numbers.insert(0,"(")
		   .insert(4,")")
		   .insert(5," ")
		   .insert(9,"-")
end