• Chapter 1: Getting Started with Stylus Studio®
• Chapter 2: Editing and Querying XML
• Chapter 3: Converting Non-XML Files to XML
• Chapter 4: Working with XSLT
• Chapter 5: Creating XSLT Using the XSLT Mapper
• Chapter 6: Debugging Stylesheets
• Chapter 7: Defining XML Schemas
• Chapter 8: Defining Document Type Definitions
• Chapter 9: Writing XPath Expressions
  • About the XPath Processor
  • Using the XPath Query Editor
  • Sample Data for Examples and Practice
  • Getting Started with Queries
  • Specifying the Nodes to Evaluate
  • Handling Strings and Text
  • Specifying Boolean Expressions and Functions
  • Specifying Number Operations and Functions
  • Comparing Values
  • Finding a Particular Node
  • Obtaining a Union
  • Obtaining Information About a Node or a Node Set
    • Obtaining the Name of a Node
    • Obtaining Namespace Information
    • Obtaining the URI for an Unparsed Entity
    • Determining the Number of Nodes in a Collection
    • Determining the Context Size
  • Using XPath Expressions in Stylesheets
  • Accessing Other Documents During Query Execution
  • XPath Quick Reference
• Chapter 10: Working with XQuery in Stylus Studio
• Chapter 11: Composing Web Service Calls
• Chapter 12: Building XML Pipelines
• Chapter 13: Publishing XML Data
• Chapter 14: Integrating with Third-Party File Systems
• Chapter 15: Extending Stylus Studio
• Chapter 16: The Stylus Studio Java API
• Chapter 17: Stylus Studio GUI Reference

Home >Online Product Documentation >Table of Contents >Determining the Number of Nodes in a Collection

Determining the Number of Nodes in a Collection

To obtain the number of nodes in a node set, call the count() function. The format is

number count(node-set)  

The count() function returns the number of nodes in the specified set. For example, the following query finds all authors who have more than ten publications:

//author[count(publications) > 10]  

To obtain the number of nodes in the current context, call the last() function, described in the next section.