Function keyOf

packages/app-core/src/store.ts:1014–1014

(folder: FolderEntry)

function mergeFoldersPreservingOrder(prev: FolderEntry[], next: FolderEntry[]): FolderEntry[] {
  const keyOf = (folder: FolderEntry): string => `${folder.folder}:${folder.subpath}`
  const nextByKey = new Map(next.map((f) => [keyOf(f), f] as const))
  const merged: FolderEntry[] = []
  const seen = new Set<string>()