Codewars Challenge: Disemvowel Trolls

disemvowel_trolls.rb

# Trolls are attacking your comment section!

# A common way to deal with this situation is to remove all of the vowels from the trolls' comments, neutralizing the threat.

# Your task is to write a function that takes a string and return a new string with all vowels removed.

# For example, the string "This website is for losers LOL!" would become "Ths wbst s fr lsrs LL!".

# Note: for this kata y isn't considered a vowel.
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#My Solution:

def disemvowel(str)
  vowels = "aeiou"
  letters = str.split("")
  letters.select { |letter| !vowels.include? letter.downcase }.join("")  
end

#PS: Realized I can use the String#delete method to do this more simply!