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How to check whether an input string contains a specified substring ignoring the case using JSP?
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 the following syntax −
boolean containsIgnoreCase(java.lang.String, java.lang.String)
Example
Following is the example to explain the functionality of the fn:containsIgnoreCase() 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>You will receive the following result −
Found test string Found TEST string
Updated on: 30-Jul-2019
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