JSP Database Connection JSP Standard Tag Library (JSTL)

JSTL fn:trim() Function

The fn:trim() function removes whitespace from both ends of a string.

Syntax

fn:trim() Function Syntax

${fn:trim(<string>)}

Example Demonstration

The following example demonstrates the function's functionality:

<%@ page language="java" contentType="text/html; charset=UTF-8"
　　　　pageEncoding="UTF-8"
<%@ 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="I am from w3codebox/>
<p>${string1　Length: ${fn:length(string1}<//p>
<c:set var="string2" value="${fn:trim(string1)"　/>
<p>${string2　Length: ${fn:length(string2}<//p>
<p>The string is: ${string2}<//p>
</body>
</html>

The running result is as follows:

string1　Length:　25
string2　Length:　16
The string is: I am from w3codebox

JSP Standard Tag Library

JSP Database Connection JSP Standard Tag Library (JSTL)

JSP Basic Tutorial

JSP Advanced Tutorial

JSTL fn:trim() Function

Syntax

Example Demonstration