Improve the following code
Refactor and optimize your code snippets with expert-level suggestions for performance, readability, and best practices.
Improve the following code
```
${selectedText}
```
Please suggest improvements for:
1. Code readability and maintainability
2. Performance optimization
3. Best practices and patterns
4. Error handling and edge cases
Provide the improved code along with explanations for each enhancement.
Added on March 31, 2026