HTMLSelectElement:checkValidity() 方法

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.

HTMLSelectElement.checkValidity() 会检查元素是否有任何输入约束条件,并且检查值是否符合约束条件。如果值是不符合约束条件的,浏览器就会在该元素上触发一个可以撤销的 invalid 事件,然后返回 false

语法

js
checkValidity()

参数

返回值

如果元素的值满足约束条件,返回 true,否则返回 false

规范

Specification
HTML
# dom-cva-checkvalidity-dev

浏览器兼容性

Report problems with this compatibility data on GitHub
desktopmobile
Chrome
Edge
Firefox
Opera
Safari
Chrome Android
Firefox for Android
Opera Android
Safari on iOS
Samsung Internet
WebView Android
WebView on iOS
checkValidity

Legend

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

Full support
Full support

参见