Syntax:
The fn:trim() function has following syntax:
java.lang.String trim(java.lang.String)
Example:
Following is the example to explain the functionality of this function:
<%@ page language="java" contentType="text/html; charset=ISO-8859-1" pageEncoding="ISO-8859-1"%> <%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %> <%@ taglib uri="http://java.sun.com/jsp/jstl/functions" prefix="fn" %> <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> <title>JSTL Trim Function Example</title> </head> <body> <c:out value="${fn:trim(' Hello ')}"></c:out> </body> </html>
Output: Hello
As you can see above, JSTL Trim Function takes ‘ Hello ‘ string as an input parameter and remove the white space from it and will return ‘Hello’ as a result.