Glossary / Validation

Validation: what it means

Checking what was typed before using it, and explaining a problem in words the person can act on.

How it shows up when you build

Forms people can finish: Checking what was typed before using it, and explaining a problem in words the person can act on.

A tip

Placeholders disappear while typing. They are hints, not labels.

Practise it

Build it with an AI tool and check the result in these exercises:

3. Forms people can finish (Labels and validation)
5. Limit what people can type (Input limits)

Related terms

Checks, Focus, Labels, Live region, Placeholder, Screen reader