JSP Database Connection JSP Standard Tag Library (JSTL)

JSTL fn:substringBefore() function

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

fn:substringBefore() function syntax is as follows:

Syntax

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

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="This is first String."/>
<c:set var="string2" value="${fn:substringBefore(string1, 
                                            'first'}" />
<p>Generated substring : ${string2}<//p>
</body>
</html>

The following results are shown below:

Generated substring : This is

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JSTL fn:substringBefore() function

fn:substringBefore() function syntax is as follows:

Example Demonstration