This content originally appeared on DEV Community and was authored by DPC
Daily JavaScript Challenge: Sum All Even Fibonacci Numbers
Hey fellow developers! 
Welcome to today’s JavaScript coding challenge. Let’s keep those programming skills sharp!
The Challenge
Difficulty: Medium
Topic: Fibonacci Series
Description
Your task is to write a function that returns the sum of all even Fibonacci numbers up to a given number, inclusive. Fibonacci numbers are Fibonacci(n) = Fibonacci(n-1) + Fibonacci(n-2) with starting values Fibonacci(0) = 0 and Fibonacci(1) = 1. If there are no even numbers in the series up to the given number, return 0.
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/Fibonacci_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! 
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This content originally appeared on DEV Community and was authored by DPC