HTMLObjectElement: validationMessage property - Web APIs | MDN (original) (raw)
Baseline
Widely available
This feature is well established and works across many devices and browser versions. It’s been available across browsers since July 2015.
The validationMessage read-only property of the HTMLObjectElement interface returns a string representing a localized message that describes the validation constraints that the control does not satisfy (if any). This is the empty string if the control is not a candidate for constraint validation (willValidate is false), or it satisfies its constraints.
Value
A string.
Specifications
| Specification |
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| HTML # dom-cva-validationmessage-dev |