Function compareManifests

tools/scripts/sync-algomooc-index.js:206–213

(before, after)

}

function compareManifests(before, after) {
  const oldById = new Map(before.map((item) => [item.leetcodeId, item]));
  const newById = new Map(after.map((item) => [item.leetcodeId, item]));
  const added = after.filter((item) => !oldById.has(item.leetcodeId));
  const removed = before.filter((item) => !newById.has(item.leetcodeId));
  const changed = after.filter((item) => oldById.has(item.leetcodeId) && !sameItem(oldById.get(item.leetcodeId), item));
  return { added, removed, changed };
}

function itemLabel(item) {
  return `#${item.leetcodeId} ${item.titleZh} (${item.slug})`;