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The string-length function is used to get the length of a string.

Syntax

string-length($string as xs:string) as xs:integer

Input Parameters

• $string − provided string.

Example

XQuery Expression

let $bookTitle := "Learn XQuery in 24 hours"
let $size := string-length($bookTitle)

return
   <result>   
      <size>{$size}</size>
   </result>

Output

<result>   
   <size>24</size>
</result>

Verify the Result

In order to test the above-mentioned functionality, replace the contents of books.xqy (mentioned in Environment Setup chapter) with the above XQuery expression and execute the XQueryTester java program to verify the result.