canisoon

Constraint Validation API

96.36

JS API

API for better control over form field validation. Includes support for `checkValidity()`, `setCustomValidity()`, `reportValidity()` and validation states.

Further reading:

  1. Can I use page for: Constraint Validation API
  2. MDN article on constraint validation
  3. MS Edge UserVoice request for reportValidity
  4. `reportValidity()` ponyfill