中文
devexamples

Paginate an In-Memory Array

Slice an array into a page and return metadata such as total pages and whether more results follow, the shape most list endpoints expose.

JavascriptData Fetching

Code

snippet
export function paginate(items, page = 1, limit = 20) {
  const safeLimit = Math.min(Math.max(limit, 1), 100);
  const totalPages = Math.max(1, Math.ceil(items.length / safeLimit));
  const current = Math.min(Math.max(page, 1), totalPages);
  const offset = (current - 1) * safeLimit;
  return {
    data: items.slice(offset, offset + safeLimit),
    page: current,
    limit: safeLimit,
    totalPages,
    hasMore: current < totalPages,
  };
}

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