Tag
constraint-validation
- Mar 13, 2025 Constraint Validation and the Form Validity State Machine Required, pattern, min, max, and step produce a set of independent validity flags, not one error. How the browser decides whether a form may submit, and where the API diverges from the interactive path. web platform
- Jun 25, 2024 Native Constraint Validation and the ValidityState Object How the browser evaluates required, pattern, min, and max attributes, what each ValidityState flag means, and where the built-in validation loop breaks down. accessibility