Re: [whatwg/dom] Proposal: ParentNode.replaceAll() / ParentNode.replaceChildren() (#478)

@FergoTheGreat Is there a reason you're not using Canvas?

An empty DOM element in Chrome requires around 1KB empty last I checked, and 120k of just those, without nested children, comes out to 0.1-0.2 GiB.

If you need to constantly replace nodes like that, try Canvas 2D instead. That gives you an immediate mode API where you can just blank the screen (`context.clearRect(0, 0, canvas.width, canvas.height)`) and re-draw everything any time you need to update. It's a very simple and intuitive API once you learn it, and it's one I'm surprised *hasn't* been ported to death in native-targeting languages like some Web APIs (like `URL`) have.

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