JSTL fn:trim() function

by

The JSTL fn:trim() function returns the input string after removing the all white spaces from both ends of the string.

Syntax: 

String trim(String inputString)

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:trim JSTL function example</title>
	</head>
	<body>
		<c:set var="testString" 
                 value="   Hello this is a JSTL function example.  "/>
		Given String: <br/>
		<c:out value="${testString}" /><br/><br/>
		String after trim:<br/>
		<c:out value="${fn:trim(testString)}" />
	</body>
</html>

web.xml

<web-app>
 
  <welcome-file-list>
          <welcome-file>test.jsp</welcome-file>
  </welcome-file-list>	
 
</web-app>

Output:

jsp example 66
 
Download this example.
 
Next Topic: Steps to create Custom tags with body in jsp with example.
Previous Topic: JSTL fn:toUpperCase() function with example.