HTMLObjectElement:validationMessage 属性

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.

HTMLObjectElement 接口的 validationMessage 只读属性返回一个表示描述控件不满足的验证约束(如果有的话)的本地化消息字符串。如果控件不是约束验证(willValidatefalse)的候选者,或者它满足其约束,则此字符串为空。

一个字符串。

规范

Specification
HTML Standard
# dom-cva-validationmessage-dev

浏览器兼容性

BCD tables only load in the browser