JSTL - fn:trim() Function
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The fn:trim() function removes white space from both ends of a string.
Syntax
The fn:trim() function has the following syntax −
java.lang.String trim(java.lang.String)
Example
Following example explains the functionality of the fn:trim() function −
<%@ taglib uri = "https://java.sun.com/jsp/jstl/core" prefix = "c" %> <%@ taglib uri = "https://java.sun.com/jsp/jstl/functions" prefix = "fn" %> <html> <head> <title>Using JSTL Functions</title> </head> <body> <c:set var = "string1" value = "This is first String"/> <p>String (1) Length : ${fn:length(string1)}</p> <c:set var = "string2" value = "${fn:trim(string1)}" /> <p>String (2) Length : ${fn:length(string2)}</p> <p>Final string : ${string2}</p> </body> </html>
You will receive the following result −
String (1) Length : 29 String (2) Length : 20 Final string : This is first String
jsp_standard_tag_library.htm
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