mixin pager(pager, f, query)
  p
    if typeof pager.prevOffset == 'number'
      - query.offset=pager.prevOffset
      a(href=f(query)) &lt;&lt; Previous
    else
      | &lt;&lt; Previous

    |  
    | #{pager.offset / pager.pageSize + 1} /
    | #{Math.round(pager.count / pager.pageSize)}
    |  

    if typeof pager.nextOffset == 'number'
      - query.offset=pager.nextOffset
      a(href=f(query)) Next &gt;&gt;
    else
      | Next &gt;&gt;