HTMLButtonElement: willValidate property

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 willValidate read-only property of the HTMLButtonElement interface indicates whether the <button> element is a candidate for constraint validation. It is false if any conditions bar it from constraint validation, including:

Value

A boolean value.

Specifications

Specification
HTML
# dom-cva-willvalidate-dev

Browser compatibility

desktop mobile
Chrome
Edge
Firefox
Opera
Safari
Chrome Android
Firefox for Android
Opera Android
Safari on iOS
Samsung Internet
WebView Android
WebView on iOS
willValidate
Chrome – Full support
Chrome 2 (Release date: 2009-05-21)
footnote Full support
Edge – Full support
Edge 12 (Release date: 2015-07-29)
footnote Full support
Firefox – Full support
Firefox 4 (Release date: 2011-03-22)
footnote Full support
Opera – Full support
Opera 12.1 (Release date: 2012-11-20)
footnote Full support
Safari – Full support
Safari 4 (Release date: 2009-06-08)
footnote Full support
Chrome Android – Full support
Chrome Android 18 (Release date: 2012-06-27)
footnote Full support
Firefox for Android – Full support
Firefox for Android 4 (Release date: 2011-03-29)
footnote Full support
Opera Android – Full support
Opera Android 12.1 (Release date: 2012-10-09)
footnote Full support
Safari on iOS – Full support
Safari on iOS 3 (Release date: 2009-06-17)
footnote Full support
Samsung Internet – Full support
Samsung Internet 1 (Release date: 2013-04-27)
footnote Full support
WebView Android – Full support
WebView Android 4.4 (Release date: 2013-12-09)
footnote Full support
WebView on iOS – Full support
WebView on iOS 3 (Release date: 2009-06-17)
footnote Full support

Legend

Tip: you can click/tap on a cell for more information.

Full support
Full support

See also