%@ taglib prefix="my" uri="http://jakarta.apache.org/tomcat/jsp2-example-taglib"%>
Change Parameter
EL Expression Result ${'${'}param["foo"]} ${param["foo"]} ${'${'}my:reverse(param["foo"])} ${my:reverse(param["foo"])} ${'${'}my:reverse(my:reverse(param["foo"]))} ${my:reverse(my:reverse(param["foo"]))} ${'${'}my:countVowels(param["foo"])} ${my:countVowels(param["foo"])}