The JSTL fn:length() function is used to get the length of the object. It returns no. of characters in case of string input and no. of elements in case of collection.
Syntax: int length(String inputString/Collection object)
Example:
test.jsp
<%@ 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>fn:length JSTL function example</title>
</head>
<body>
<c:set var="testString"
value="Hello this is a JSTL function example."/>
Length of the given string: <br/>
<c:out value="${fn:length(testString)}" />
</body>
</html>
|
web.xml
<web-app>
<welcome-file-list>
<welcome-file>test.jsp</welcome-file>
</welcome-file-list>
</web-app>
|
Output:
No comments:
Post a Comment