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Given this pagination metadata in a REST API response:

medium📝 Predict Output Q4 of 15
Rest API - Pagination Patterns

Given this pagination metadata in a REST API response:

{
  "pagination": {
    "current_page": 3,
    "total_pages": 4,
    "page_size": 10,
    "total_items": 35
  }
}

How many items are on the last page?

A10
B35
C15
D5
Step-by-Step Solution
Solution:
  1. Step 1: Calculate total items and pages

    Total items are 35, page size is 10, total pages are 4.
  2. Step 2: Determine items on last page

    Pages 1-3 have 10 items each (3*10=30), so last page has 35-30=5 items.
  3. Final Answer:

    5 -> Option D
  4. Quick Check:

    Last page items = total_items - (page_size * (total_pages - 1)) = 5 [OK]
Quick Trick: Last page items = total_items minus full pages items [OK]
Common Mistakes:
  • Assuming last page always has full page_size items
  • Using total_pages as item count
  • Ignoring leftover items calculation

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