Do any browsers yet support HTML5's checkValidity() method?

Question

The HTML5 spec defines some very interesting validation components, including pattern (for validating against a Regexp) and required (for marking a field as required

Answer 1

checkValidity() is suppost to work on either the form as a whole or an individual input.

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"Additionally, the checkValidity() method can be executed on either an individual field or the form as a whole, and returns true or false. Executing the method will also programmatically fire the invalid event for all invalid fields, or, if executed on a single field, only for that element."

taken from a List Apart - http://www.alistapart.com/articles/forward-thinking-form-validation/

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"form . checkValidity() Returns true if the form's controls are all valid; otherwise, returns false." http://www.w3.org/TR/2011/WD-html5-20110525/association-of-controls-and-forms.html#constraint-validation

"valid = element . checkValidity() Returns true if the element's value has no validity problems; false otherwise. Fires an invalid event at the element in the latter case." http://www.w3.org/TR/2011/WD-html5-20110525/forms.html#client-side-form-validation

W3C - working draft.