Displaying Actual Errors
Explore how to implement error handling for validation in auto-validating forms using custom error classes, try/catch blocks, and mapping inputs to validation rules. Understand how to test validation logic effectively to ensure accurate user feedback.
We'll cover the following...
We'll cover the following...
We now have a basic form, some JavaScript to execute validation on each input at the correct time, a way to distinguish which field is which, and a set of validation rules to apply to each one. Let’s put the pieces together now!
Changelist
- Create a unique error class
- This lets us do things only with expected errors that arise from validation by checking
instanceof.
- This lets us do things only with expected errors that arise from validation by checking
- Introduce a
try/catchfor validation.- The
catch
- The