❮ Jstl Format Timezone Tag Jsp Form Processing ❯

fn:substringBefore() Function

The fn:substringBefore() function returns the part of a string before a specified substring.

Syntax

The syntax for the fn:substringBefore() function is as follows:

${fn:substringBefore(<string>, <substring>)}

Example Demonstration

The following example demonstrates the functionality of this function:

<%@ 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>

&lt;c:set var="string1" value="This is first String."/>
&lt;c:set var="string2" value="${fn:substringBefore(string1, 
                                            'first')}" />

<p>Generated Substring : ${string2}</p>

</body>
</html>

The output is as follows:

Generated Substring : This is

JSP Standard Tag Library

❮ Jstl Format Timezone Tag Jsp Form Processing ❯