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General Discussion

Posted by Ryan Magdaleno
Ryan Magdaleno
6,447 Points

What would be the implications of forcing the correct input on the front end vs handling exceptions in the code?

Importance of learning exception handling aside, and more of a general conceptual question, but would this be considered bad/good practice? I'm imagining an app with an input field and a submit button that isn't clickable until the field's values match the criteria, or selected from a drop down etc.

1 Answer

Steven Parker
Steven Parker
231,269 Points
Steven Parker
Steven Parker
231,269 Points

What you are describing is known as "client-side validation", and is considered good practice. It also gives the user a much better interactive experience.

Best practice is to combine client-side and server-side validation. This gives the user the best experience, plus it confirms input validity after reception to guard against bugs or possible malicious misuse attempts using modified front-end code.

Ryan Magdaleno
Ryan Magdaleno
6,447 Points

That makes sense, thanks for the reply!

Steven Parker
Steven Parker
231,269 Points
Steven Parker
Steven Parker
231,269 Points

Ryan Magdaleno — Glad to help. You can mark a question solved by choosing a "best answer".
And happy coding!