Baseline Widely available
HTMLTableRowElement.rowIndex
ã¯èªã¿åãå°ç¨ããããã£ã§ã表 (<table>
) å
¨ä½ã«å¯¾ããè¡ã®ç¸å¯¾çãªä½ç½®ã表ãã¾ãã
<thead>
ã<tbody>
ã<tfoot>
ã®åè¦ç´ ã HTML ã®ä¸ã§é ä¸åã§ãã£ã¦ãããã©ã¦ã¶ã¼ã¯è¡¨ãæ£ããé åºã§æç»ãã¾ããå¾ã£ã¦è¡ã®ã«ã¦ã³ã㯠<thead>
ãã <tbody>
ã¸ã <tbody>
ãã <tfoot>
ã¸ã¨é²ã¿ã¾ãã
è¡ã®ä½ç½®ãè¿ãã¾ããè¡ãè¡¨ã«æå±ãã¦ããªãå ´å㯠-1
ã§ãã
ãã®ä¾ã¯ã JavaScript ã使ç¨ãã¦è¡¨ã®ãã¹ã¦ã®è¡ã«è¡çªå·ãæ¯ãã¾ãã
HTML<table>
<thead>
<tr>
<th>åç®</th>
<th>ä¾¡æ ¼</th>
</tr>
</thead>
<tbody>
<tr>
<td>ããã</td>
<td>$2</td>
</tr>
<tr>
<td>ãªã¬ã³ã¸</td>
<td>$8</td>
</tr>
<tr>
<td>ããããµã¼ãã¤ã³</td>
<td>$20</td>
</tr>
</tbody>
<tfoot>
<tr>
<td>åè¨</td>
<td>$30</td>
</tr>
</tfoot>
</table>
JavaScript
let rows = document.querySelectorAll("tr");
rows.forEach((row) => {
let z = document.createElement("td");
z.textContent = `(#${row.rowIndex} è¡ç®)`;
row.appendChild(z);
});
çµæ ãã©ã¦ã¶ã¼ã®äºææ§
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