What are the best practices for setting default values in programming?

What are the best practices for setting default values in programming?

When setting default values, ensure they are meaningful, avoid using null, and consider user expectations.

Can you give an example of a good default value?

Sure! For a user age field, a default value of 18 is often appropriate, as it reflects a common legal age.

What should I avoid when choosing default values?

Avoid using arbitrary values that may confuse users, like -1 for age, as they can lead to misunderstandings.

How do default values affect user experience?

Default values can streamline user input, reduce errors, and enhance overall satisfaction when they align with user needs.