If there are many list items you try retrieve with javascript object model,paging could be very useful. Today I came across a wonderful blog post series about javascript object model in SharePoint: The SharePoint javascript object model - Resources and Real World Examples posted by David Mann and published on Aptilon Blog. There is an example how to achieve paging with JSOM. The key is items.get_listItemCollectionPosition() and query.set_listItemCollectionPosition() I have refactored David’s example to avoid global variables and to put into a module.