for
屿§ã¯ <label>
㨠<output>
ã§å©ç¨ã§ãã屿§ã§ãã <label>
è¦ç´ ä¸ã§ä½¿ç¨ãããå ´åããã®ã©ãã«ã説æãããã©ã¼ã è¦ç´ ã示ãã¾ãã <output>
è¦ç´ ä¸ã§ä½¿ç¨ãããå ´åããã®åºåæ¬ã§ä½¿ç¨ãããå¤ã表ãè¦ç´ éã®é¢ä¿ãæç¤ºçã«ç¤ºããã¨ãã§ãã¾ãã
<p>
<label>First Name ï¼"for" 屿§ãªãï¼:</label>
<input id="first" type="text" value="Jane" />
</p>
<p>
<label for="last">Last Name ï¼"for" 屿§ä»ãï¼:</label>
<input id="last" type="text" value="Doe" />
</p>
<p id="result">
<strong id="result-label">ãã«ãã¼ã :</strong>
<output for="first last" aria-labelledby="result-label" id="output"></output>
</p>
label[for="paragraph"] {
color: rebeccapurple;
}
#result {
text-align: center;
}
#result-label {
font-size: 16pt;
}
#result-label,
#output {
display: block;
}
const firstNameEl = document.getElementById("first");
const lastNameEl = document.getElementById("last");
const outputEl = document.getElementById("output");
function updateOutput() {
const value = `${firstNameEl.value} ${lastNameEl.value}`;
outputEl.innerText = value;
}
updateOutput();
firstNameEl.addEventListener("input", updateOutput);
lastNameEl.addEventListener("input", updateOutput);
ä½¿ç¨æ¹æ³
<label>
ã®å±æ§ã¨ãã¦ä½¿ç¨ãããå ´åã for
屿§ã¯ãã®ã©ãã«ãé¢é£ãããã©ã¼ã è¦ç´ ã® id
å¤ãä¿æãã¾ãã
<label for="username">Your name</label> <input type="text" id="username" />
<output>
ã®å±æ§ã¨ãã¦ä½¿ç¨ãããå ´åã for
屿§ã¯ãã®åºåã使ããããã«ä½¿ç¨ãããè¦ç´ ã® id
å¤ãã空ç½ã§åºåã£ããªã¹ãã§ããå¤ãä¿æãã¾ãã
<input type="range" id="b" name="b" value="50" /> +
<input type="number" id="a" name="a" value="10" /> =
<output name="result" for="a b">60</output>
ä¾
<label>
ããã³ <output>
ã®è¦ç´ ãã¼ã¸ã®ä½¿ç¨ä¾ãåç
§ãã¦ãã ããã
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