🚀 Day 24/150 – Check Vowel or Consonant in Python

 

🚀 Day 24/150 – Check Vowel or Consonant in Python

One of the simplest and most important beginner problems in Python is checking whether a character is a vowel or a consonant. It helps you understand conditions, strings, and user input.

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📌 What is a Vowel?

Vowels in English are:

a, e, i, o, u

(Also consider uppercase: A, E, I, O, U)

Everything else (alphabets) is a consonant.

🔹 Method 1 – Using if-else

char = 'a' if char.lower() in 'aeiou': print("Vowel") else: print("Consonant")

🧠 Explanation:

• char.lower() converts input to lowercase.
• 'aeiou' contains all vowels.
• in checks if the character exists in that string.

👉 Best for: Clean and readable logic.

🔹 Method 2 – Taking User Input

char = input("Enter a character: ") if char.lower() in 'aeiou': print("Vowel") else: print("Consonant")

🧠 Explanation:

• Takes input from user.
• Works for both uppercase and lowercase.

👉 Best for: Interactive programs.

🔹 Method 3 – Using Function

def check_vowel(char): if char.lower() in 'aeiou': return "Vowel" else: return "Consonant" print(check_vowel('e'))

🧠 Explanation:

• Function makes code reusable.
• Returns result instead of printing directly.

👉 Best for: Structured programs.

🔹 Method 4 – Using Lambda Function

check = lambda c: "Vowel" if c.lower() in 'aeiou' else "Consonant" print(check('b'))

🧠 Explanation:

• Short one-line function.
• Uses inline if-else.

👉 Best for: Quick checks.

⚡ Key Takeaways

• Use in keyword for easy checking
• Convert to lowercase using .lower()
• Always validate user input
• Vowels = aeiou

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💡 Pro Tip

Try extending this:

• Count vowels in a string
• Check vowels in a sentence
• Build a mini text analyzer

Keep going 🚀