To ensure validation code doesn’t negatively impact performance, focus on efficient coding practices. Avoid unnecessary validations that don’t contribute to the functionality or security of your application. Use built-in functions and libraries for common tasks as they are usually optimized for performance.
When validating user input, do it client-side first to reduce server load. However, always validate again server-side as client-side validation can be bypassed. For database queries, use prepared statements or parameterized queries to avoid SQL injection attacks without needing extensive validation.
For complex validations, consider using a background process so it doesn’t block the main thread. This allows the application to continue running while the validation is being processed. Also, regularly profile and test your code under realistic conditions to identify any bottlenecks or slow parts in your validation routines.
