Daily JavaScript Challenge #JS-124: Find Number of Vowels in a String

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Daily JavaScript Challenge: Find Number of Vowels in a String

Hey fellow developers! 👋 Welcome to today's JavaScript coding challenge. Let's keep those programming skills sharp!

The Challenge

Difficulty: Easy

Topic: String Manipulation

Description

Create a function that counts the number of vowels in a given string. Vowels include 'a', 'e', 'i', 'o', 'u', both uppercase and lowercase. The function should return the total count of vowels in the string.

Ready to Begin?

https://www.dpcdev.com/

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Write your solution
Test it against the provided test cases
Share your approach in the comments below!

Want to Learn More?

Check out the documentation about this topic here: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/toLowerCase

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This is part of our Daily JavaScript Challenge series. Follow me for daily programming challenges and let's grow together! 🚀

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Top comments (6)

Alex Lohr • Mar 13

const countVowels = word => [...word.toLowerCase()]
  .filter(c => "aeiou".includes(c))
  .length;

Massimo Artizzu • Mar 14

const vowelCount = word.split(/[aeiou]/i).length - 1;

A solution good for challenges, nothing more. Don't use it in your code.

na.perruchot • Mar 18 • Edited

const countVowels => (content) => 
   [...content.normalize("NFD").toLowerCase().match(/([aeiou])/igu)].length;

Misael Braga de Bitencourt • Mar 17 • Edited

const countVowels = word => {
    const vowels = [...'aeiouáéíóúâêîôûàèìòùãẽĩõũ'];
    return [...word.toLowerCase()].reduce((counter, current) => counter += vowels.indexOf(current) === -1 ? 0 : 1, 0);
}