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# JSTL fn:length() Function

The fn:length() function returns the string length or the number of items in a collection.

## Syntax:

The fn:length() function has following syntax:

    int length(java.lang.Object)

## Example:

Following is the example to explain the functionality of this function:

    <%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %>
    <%@ taglib uri="http://java.sun.com/jsp/jstl/functions"
                                                      prefix="fn" %>
    <html>
    <head>
    <title>Using JSTL Functions</title>
    </head>
    <body>

    <c:set var="string1" value="This is first String."/>
    <c:set var="string2" value="This is second String." />

    <p>Length of String (1) : ${fn:length(string1)}</p>
    <p>Length of String (2) : ${fn:length(string2)}</p>

    </body>
    </html>

This would produce following result:

    Length of String (1) : 21
    Length of String (2) : 22

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