createCaption method
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.
Implementation
external HTMLTableCaptionElement createCaption();