JSTL - fn:join() Function
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The fn:join() function concatenates all the elements of an array into a string with a specified separator.
Syntax
The fn:join() function has the following syntax −
String join (java.lang.String[], java.lang.String)
Example
Following is the example to explain the functionality of the fn:join() 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."/> <c:set var = "string2" value = "${fn:split(string1, ' ')}" /> <c:set var = "string3" value = "${fn:join(string2, '-')}" /> <p>Final String : ${string3}</p> </body> </html>
Note − The fn:split() function returns an array splitting into different elements.
You will receive the following result −
Final String : This-is-first-String.
jsp_standard_tag_library.htm
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