JSTL fn:substringBefore() Function

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

Syntax:

The fn:substringBefore() function has following syntax:

java.lang.String substringBefore(java.lang.String, 
                                 java.lang.String)

Example:

Following is the example to explain the functionality of this function:

<%@ 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>Final sub string : ${string2}</p>

</body>
</html>

This would produce following result:

Final sub string : This is 


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