How can I implement data validation in my software?

How can I implement data validation in my software?

You can implement data validation by defining rules for acceptable input, using techniques like regex, and validating data at both client and server sides.

What are some common data validation techniques?

Common techniques include type checking, range checking, format validation, and using libraries or frameworks that provide built-in validation.

How do I handle invalid data?

You should provide clear error messages, allow users to correct their input, and log invalid attempts for further analysis.

Can you give an example of regex for email validation?

Sure! A common regex for email validation is: ^[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,}$.