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HTMLFormElement: reportValidity() メソッド - Web API | MDN
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HTMLFormElement: reportValidity() メソッド
Baseline
Widely available
This feature is well established and works across many devices and browser versions. It’s been available across browsers since 2018年4月.
HTMLFormElement.reportValidity() メソッドは、この要素の子コントロールが制約検証を満たしていれば true を返します。
false が返された場合、キャンセル可能な
invalid イベントが無効な子要素それぞれについて発行され、ユーザーに検証の問題を報告します。
構文
js
reportValidity()
返値
true または false
例
js
document.forms["myform"].addEventListener(
"submit",
() => {
document.forms["myform"].reportValidity();
},
false,
);
仕様書
| Specification |
|---|
| HTML # dom-cva-reportvalidity-dev |
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