Fibonacci Sequence
JAVASCRIPT
Medium
+25 XP
Problem Description
Write a function `fibonacci(n)` that returns the nth Fibonacci number (0-indexed).
The Fibonacci sequence: 0, 1, 1, 2, 3, 5, 8, 13, ...
Example:
fibonacci(0) → 0
fibonacci(1) → 1
fibonacci(6) → 8
fibonacci(10) → 55
The Fibonacci sequence: 0, 1, 1, 2, 3, 5, 8, 13, ...
Example:
fibonacci(0) → 0
fibonacci(1) → 1
fibonacci(6) → 8
fibonacci(10) → 55
Test Cases
Input: fibonacci(0)
Expected: 0
Input: fibonacci(1)
Expected: 1
Input: fibonacci(6)
Expected: 8
Input: fibonacci(10)
Expected: 55
Your Solution