To ensure clean and maintainable JavaScript code, consider following these best practices: Use Descriptive Variable and Function Names: Choose meaningful names that accurately reflect the purpose and functionality of variables and functions, making the code more readable. Organize Code into Functions: Break down your code into reusable functions that perform specific tasks, promoting modularity and reusability. Comment Your Code: Add comments to explain complex logic or provide context for future developers who might work with your codebase. Avoid Global Variables: Minimize the use of global variables as they can lead to naming conflicts and make code harder to manage. Instead, use local variables within functions whenever possible. Regularly Test and Debug: Perform thorough testing and debugging to identify and fix issues early in the development process. Follow Coding Conventions: Adhere to established coding conventions and style guides to maintain consistency and improve code readability.