How Many Vowels?

Challenge Difficulty: Easy | Estimated completion time: ~5 minutes

Create a function that takes a string and returns the number (count) of vowels in the string.

Examples

count_vowels("Celebration") ➞ 5 # 5 vowels
 
count_vowels("Palm") ➞ 1 # 1 vowel
 
count_vowels("Prediction") ➞ 4 # 4 vowels

Notes

• a, e, i, o, u are considered vowels (not y).
• All test cases are one word and only contain letters.

Solution

Python

def count_vowels(text: str) -> int: """Count the number of vowels in a string. Args: text: Input string Returns: Number of vowels (a, e, i, o, u) in the string """ vowels = "aeiouAEIOU" return sum(1 for char in text if char in vowels) if __name__ == "__main__": print(count_vowels("Celebration")) # 5 print(count_vowels("Palm")) # 1 print(count_vowels("Prediction")) # 4

Output