juniorRecursion
What are the two essential components of a recursive function?
Updated Apr 28, 2026
Short answer
The base case (stops the recursion) and the recursive case (continues it).
Deep explanation
Recursion allows for elegant solutions to hierarchical problems. The base case (stops the recursion) and the recursive case (continues it). However, it requires careful handling of the stack to prevent memory exhaustion.
Real-world example
Traversing a family tree.
Common mistakes
- Forgetting the base case, leading to infinite recursion.
Follow-up questions
- What is the space complexity?