JSTL fn:indexOf() function

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The JSTL fn:indexOf() function returns the start position of the specified string in the input string. It returns -1 if specified string not found in the input string.

Syntax: 

int indexOf(String inputString, String specifiedString)

Example:

test.jsp

<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %>
<%@ taglib uri="http://java.sun.com/jsp/jstl/functions" prefix="fn" %>


	
		fn:indexOf JSTL function example
	
	
		
		Index of JSTL in the String:

web.xml


	
  
          test.jsp

Output:

jsp example 57
 
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