input: Write a function to detect the first vowel in a given string. The function should return the first vowel found in the string. If no vowel is found, the function should return an empty string.
  def vowelCheck(inputString): 
      vowels = ['a','e','i','o','u','A','E','I','O','U'] 
      for x in inputString: 
          if x in vowels: 
              return x
      return ""
  assert vowelCheck("Hello World")=="e"
  assert vowelCheck("Python")=="o"
  assert vowelCheck("12345")==""
  assert vowelCheck("")==""
  assert vowelCheck("Rhythm")==""
output: def vowelCheck(inputString): 
      vowels = ['a','e','i','o','u','A','E','I','O','U'] 
      for x in inputString: 
          if x in vowels: 
              return x
      return ""