ruby_vowels.rb

# Let's go back to the exercise where we determined what is and isn't a vowel.
# With ruby, there's always more than one way to do something and get the same result.

# Assuming vowels a,e,i,o,u:
VOWELS = ["a","e","i","o","u"]

# Write a method that returns whether a given letter is a vowel, using if and elsif
def is_a_vowel?(letter)

  if letter == "a"

	
end

# Write a method that returns whether a given letter is a vowel, using case

def is_a_vowel?(letter)

	case letter
	when "a"
		true
	when "b"
		true
	else
		false
	end

end



# Write a method that returns whether a given letter is a vowel, using if with no else, all on a single line

def is_a_vowel?(letter)

	true if letter == "a" | "e" | "i" | "o" | "u"

end

# Write a method that returns whether a given letter is a vowel without
# using if or case while all on a single line

def is_a_vowel?(letter)

	letter.include?(/a|e|o|i|u/)

end
# Write a method that returns whether a given letter is a vowel

def is_a_vowel?(letter)

	VOWELS.each do |vowel|
		
	end
end

# without checking equality, or the use of if, using the array of vowels


# Write a method that will evaluate a string and return the first vowel found in the string, if any

# Write a method that will evaluate a string and return the ordinal position
#(index) of the string where the first vowel is found, if any
# hint: remember that every line of ruby code has a return value,
#and that a method will return the result of the last operation