HTMLTextAreaElement: validity ããããã£
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validity 㯠HTMLTextAreaElement ã¤ã³ã¿ã¼ãã§ã¤ã¹ã®èªã¿åãå°ç¨ããããã£ã§ããã®è¦ç´ ã®æå¹ç¶æ
ã表ã ValidityState ãªãã¸ã§ã¯ããè¿ãã¾ãã
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ValidityState ãªãã¸ã§ã¯ãã§ãã
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js
const textArea = document.getElementById("myTextArea");
const validityState = textArea.validity;
if (!validityState.valid) {
// ããããã®å¦¥å½æ§ç¶æ
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}
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| HTML # the-constraint-validation-api:dom-cva-validity |