HTMLButtonElement: setCustomValidity() method
Baseline Widely available
This feature is well established and works across many devices and browser versions. It’s been available across browsers since December 2018.
The setCustomValidity()
method of the HTMLButtonElement
interface sets the custom validity message for the <button>
element. Use the empty string to indicate that the element does not have a custom validity error.
Syntax
js
setCustomValidity(string)
Parameters
string
-
The string containing the error message. The empty string removes any custom validity errors.
Return value
None (undefined
).
Examples
js
const errorButton = document.getElementById("checkErrors");
const errors = issuesToReport();
if (errors) {
errorButton.setCustomValidity("There is an error");
} else {
errorButton.setCustomValidity("");
}
Specifications
Specification |
---|
HTML # dom-cva-setcustomvalidity-dev |
Browser compatibility
Report problems with this compatibility data on GitHubdesktop | mobile | |||||||||||
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setCustomValidity |
Legend
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- Full support
- Full support
- See implementation notes.
The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.