JSTL Core <c:remove> Tag
Advertisements
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:
| Attribute | Description | Required | Default |
|---|---|---|---|
| var | Name of the variable to remove | Yes | None |
| scope | Scope of the variable to remove | No | All 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: