Function groupSiblings

source/github-helpers/group-buttons.tsx:33–48

(button: Element)

// Find immediate `.btn` siblings of `button` and wrap them with groupButtons
export function groupSiblings(button: Element): Element {
	const siblings = [button];
	let previous = button.previousElementSibling;
	while (previous?.classList.contains('btn')) {
		siblings.unshift(previous);
		previous = previous.previousElementSibling;
	}

	let next = button.nextElementSibling;
	while (next?.classList.contains('btn')) {
		siblings.push(next);
		next = next.nextElementSibling;
	}

	return groupButtons(siblings);
}