ElementInternals: validationMessage property
Baseline
Widely available
This feature is well established and works across many devices and browser versions. It’s been available across browsers since March 2023.
The validationMessage read-only property of the ElementInternals interface returns the validation message for the element.
Value
A string containing the validation message of this element.
Examples
In the following example the validation message is set with ElementInternals.setValidity(), and then returned with validationMessage.
js
this.internals_.setValidity({ valueMissing: true }, "my message");
console.log(this.internals_.validationMessage); // "my message"
Specifications
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| HTML # dom-elementinternals-validationmessage |
Browser compatibility
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validationMessage
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Legend
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- Full support
- Full support