lib.d.ts HTMLTableElement, HTMLTableSectionElement, and HTMLTableRowElement

[kvarekamp]

A couple of html table related methods in lib.d.ts return HTMLElement, but they could return a more precise type:

• HTMLTableElement.insertRow should return HTMLTableRowElement instead of HTMLElement
• HTMLTableElement.createTHead should return HTMLTableSectionElement instead of HTMLElement
• HTMLTableElement.createTBody should return HTMLTableSectionElement instead of HTMLElement
• HTMLTableElement.createTFoot should return HTMLTableSectionElement instead of HTMLElement
• HTMLTableElement.createCaption should return HTMLTableCaptionElement instead of HTMLElement
• HTMLTableSectionElement.insertRow should return HTMLTableRowElement instead of HTMLElement
• HTMLTableRowElement.insertCell should return HTMLTableCellElement instead of HTMLElement

[djarekg]

How about also HTMLTableElement cells and rows property return a new generic type HTMLCollectionOf where cells is HTMLCollectionOf and rows is HTMLCollectionOf. And the HTMLTableRowElement cells property would be HTMLCollectionOf.

[matthewrwilton]

Seems like this didn't make v1.6. Is it possible to get a milestone update?

[mhegazy]

@zhengbli is working on releasing the script that generates the typings file. it should come out shortly, and with that we should be able to take PRs for features like this one. putting it on @zhengbli for now.

[zhengbli]

The HTMLTableElement.rows is not only HTMLTableRowElement, it also contains headers and other types spec, the same goes for HTMLTableRowElement.cells.

[zhengbli]

I have a PR fixing this at microsoft/TypeScript-DOM-lib-generator#24
If you want to take a look @mhegazy @sockfish