JSTL Core <c:remove> Tag

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The <c:remove> tag removes a variable from either a specified scope or the first scope where the variable is found (if no scope is specified). This action is not normally particularly helpful, but it can aid in ensuring that a JSP cleans up any scoped resources it is responsible for.

Attribute:

The <c:remove> tag has following attributes:

AttributeDescription RequiredDefault
varName of the variable to removeYesNone
scopeScope of the variable to removeNoAll scopes

Example:

<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %>
<html>
<head>
<title><c:remove> Tag Example</title>
</head>
<body>
<c:set var="salary" scope="session" value="${2000*2}"/>
<p>Before Remove Value: <c:out value="${salary}"/></p>
<c:remove var="salary"/>
<p>After Remove Value: <c:out value="${salary}"/></p>
</body>
</html>

This would produce following result:

Before Remove Value: 4000
After Remove Value: 


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