Daily JavaScript Challenge: Check if a Number is a Happy Number
Hey fellow developers! 👋 Welcome to today's JavaScript coding challenge. Let's keep those programming skills sharp!
The Challenge
Difficulty: Medium
Topic: Mathematics
Description
A happy number is a number which eventually reaches 1 when replaced repeatedly by the sum of the square of its digits. If it loops endlessly in a cycle, then it is not a happy number. For example, starting with 19, the sequence is: 1² + 9² = 82, 8² + 2² = 68, 6² + 8² = 100, 1² + 0² + 0² = 1. Hence, 19 is a happy number. Implement a function to check if a given number is a happy number.
Ready to Begin?
- Fork this challenge
- 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://en.wikipedia.org/wiki/Happy_number
Join the Discussion!
- How did you approach this problem?
- Did you find any interesting edge cases?
- What was your biggest learning from this challenge?
Let's learn together! Drop your thoughts and questions in the comments below. 👇
This is part of our Daily JavaScript Challenge series. Follow me for daily programming challenges and let's grow together! 🚀
Top comments (0)