Baseline Widely available
setCustomValidity()
㯠HTMLTextAreaElement
ã¤ã³ã¿ã¼ãã§ã¤ã¹ã®ã¡ã½ããã§ã <textarea>
è¦ç´ ã®ç¬èªã®æ¤è¨¼ã¡ãã»ã¼ã¸ãæå®ãã¾ãã空æååã使ç¨ããã¨ããã®è¦ç´ ã«ç¬èªã®æ¤è¨¼ã¨ã©ã¼ããªããã¨ã示ãã¾ãã
setCustomValidity(string)
弿°
string
ã¨ã©ã¼ã¡ãã»ã¼ã¸ãæ ¼ç´ããã¦ããæååã空æååãæå®ããã¨ãç¬èªã®æ¤è¨¼ã¨ã©ã¼ããã¹ã¦é¤å»ããã¾ãã
ãªã (undefined
)ã
ãã®ä¾ã§ã¯ããã <textarea>
ãå¶ç´æ¤è¨¼ãåæ ¼ããªãã£ãå ´åãæ¤è¨¼ãéããªãã£ãå¶ç´ã«åºã¥ãã¦ç¬èªã¨ã©ã¼ãæå®ãã¾ããå¤ãæå¹ãªå ´åã¯ãç¬èªã¨ã©ã¼ã空æååã«è¨å®ãã¾ãã
const comment = document.getElementById("comment");
if (comment.validity.valueMissing) {
comment.setCustomValidity("空ã®ã³ã¡ã³ããéä¿¡ãããã¨ã¯ã§ãã¾ããã");
} else if (comment.validity.tooShort) {
comment.setCustomValidity("ãã£ã¨ä¼ãã¦ãã ãããã³ã¡ã³ããçããã¾ãã");
} else if (comment.validity.tooLong) {
comment.setCustomValidity(
"ãããã¹ã好ãã§ããï¼ 800 æå以å
ã«åãã¦ãã ããï¼",
);
} else {
comment.setCustomValidity("");
}
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