The HTMLTableElement.createCaption() method returns the <caption> element associated with a given <table>. If no <caption> element exists on the table, this method creates it, and then returns it.
Note: If no caption exists, createCaption() inserts a new caption directly into the table. The caption does not need to be added separately as would be the case if Document.createElement() had been used to create the new <caption> element.
createCaption()None.
HTMLTableCaptionElementThis example uses JavaScript to add a caption to a table that initially lacks one.
<table>
<tbody>
<tr>
<td>Cell 1.1</td>
<td>Cell 1.2</td>
<td>Cell 1.3</td>
</tr>
<tr>
<td>Cell 2.1</td>
<td>Cell 2.2</td>
<td>Cell 2.3</td>
</tr>
</tbody>
</table>let table = document.querySelector("table");
let caption = table.createCaption();
caption.textContent = "This caption was created by JavaScript!";