JSTL fn:containsIgnoreCase() Function

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The fn:containsIgnoreCase() function determines whether an input string contains a specified substring. While doing search it ignores the case.

Syntax:

The fn:containsIgnoreCase() function has following syntax:

boolean containsIgnoreCase(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="theString" value="I am a test String"/>

<c:if test="${fn:containsIgnoreCase(theString, 'test')}">
   <p>Found test string<p>
</c:if>

<c:if test="${fn:containsIgnoreCase(theString, 'TEST')}">
   <p>Found TEST string<p>
</c:if>

</body>
</html>

This would produce following result:

Found test string
Found TEST string


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