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Gregor Schafroth
Gregor Schafroth

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👨‍💻 Daily Code 44 | Count Vowels in 🐍 Python and 🟨 JavaScript

#beginners #python #javascript #daily

Time for another simple exercise to be solved both in Python and JavaScript!

Here is what I got from ChatGPT:

Exercise: Count Vowels

Write a program that counts the number of vowels in a given string. For this exercise, consider the vowels to be a, e, i, o, and u (you can choose to include or exclude y). The program should take a string as input and output the count of vowels in the string.

For example:

  • Given the string "hello world", the program should output 3 (since there are three vowels: e, o, o).

This exercise will help you practice string manipulation, looping, and conditionals in both Python and JavaScript.

Here's a breakdown of the task:

  1. Iterate over each character in the string.
  2. Check if the character is a vowel.
  3. Keep a count of the number of vowels.
  4. Output the final count.

Remember, the logic will be similar in both languages, but the syntax will differ. Give it a try, and see how you can implement this in both Python and JavaScript.

My Code

Alright, let’s give this a try and get started with Python!

# Exercise: Count Vowels  def main(): user_input = input('Input: ') print(f'Vowels: {countVowels(user_input)}') def countVowels(string): count = 0 vowels = "aeiou" for letter in string: if letter.lower() in vowels: count += 1 return count if __name__ == '__main__': main()
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Alright, here I knew how to make the for loop, just had to ask for help with how to check if the individual letters are vowels. Thought I need some special method or library but turns out I can simply define vowels = "aeiou" and then compare it to that. brilliant!

Now JavaScript, this is going to be more difficult for me.

let user_input = 'Hello World'; for (letter in user_input){ console.log(letter); }
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I tried to start with this. Already doesn’t work because it just gives me numbers instead of the letters. Turns out it can be fixed like this:

let user_input = 'Hello World'; for (let letter of user_input) { console.log(letter); }
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And then again got some help from ChatGPT for the include(). can’t just use in like in Python before. also .lower() in Python is .toLocaleLowerCase() in JavaScript.

const user_input = prompt("Input: "); console.log(`Input: ${user_input}`); const vowels = 'aeiou'; let count = 0; for (let letter of user_input) { if (vowels.includes(letter.toLocaleLowerCase())) { count++; } } console.log(`Vowels: ${count}`);
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And then finally I asked chatGPT to put the whole thing in the browser because I wanted to see how that would work.

<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>Vowel Counter</title> </head> <body> <input type="text" id="userInput" placeholder="Type a string"> <button onclick="countVowels()">Count Vowels</button> <p id="result"></p> <script> function countVowels() { const userInput = document.getElementById('userInput').value; const vowels = 'aeiou'; let count = 0; for (let letter of userInput) { if (vowels.includes(letter.toLowerCase())) { count++; } } document.getElementById('result').textContent = `Vowels: ${count}`; } </script> </body> </html>
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Pheww sounds like a simple exercise but was a tough one again for me. Will ask for even simpler exercises the next few days!

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