Function groupAdjacent

groupAdjacent<T extends XNode | XAttribute, K>(
items: T[],
keySelector: (item: T) => K,
): { items: XSequence<T>; key: K }[]
Groups adjacent items that share the same key into runs.
Type Parameters
- T extends XNode | XAttribute
  The element type.
- K
  The type of the grouping key.
Parameters
- items: T[]
  The items to group.
- keySelector: (item: T) => K
  A function that returns the grouping key for each item.
Returns { items: XSequence<T>; key: K }[]
An array of objects, each containing a key and an XSequence of adjacent items with that key.
- Defined in src/XSequence.ts:529