JSTL fn:length() Function

by Online Tutorials Library July 22, 2022

JSTL fn:length() Function

The fn:length() function returns the number of characters inside a string, or the number of items in a collection. It is used for calculating the length of string and to find out the number of elements in a collection.

The syntax used for including the fn:length() function is:

It returns the length of object. The return type of this function is int .

Let’s see the simple example to understand the functionality of fn:length() function:

<%@ taglib uri=”http://java.sun.com/jsp/jstl/core” prefix=”c” %> <%@ taglib uri=”http://java.sun.com/jsp/jstl/functions” prefix=”fn” %>   <title>JSTL fn:length() example</title>     Length of the String-1 is: ${fn:length(str1)}<br> Length of the String-2 is: ${fn:length(str2)}   

Output:

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