What are the best practices for using constants in programming?

What are the best practices for using constants in programming?

Using constants improves code readability and maintainability. Here are some best practices: 1. Use descriptive names, 2. Group related constants, 3. Use uppercase letters for constant names, 4. Avoid magic numbers.

Can you give me an example of a constant in code?

Sure! In JavaScript, you can define a constant like this: const MAX_USERS = 100; This makes it clear that MAX_USERS should not change.

Why should I avoid magic numbers?

Magic numbers can make your code hard to understand. Instead of using a number directly, use a constant with a descriptive name to clarify its purpose.

Are there any exceptions to using constants?

Yes, while constants are great for fixed values, you might use variables for values that need to change during execution, like user input.