JavaServer Pages, 3rd Edition

Name

fn:substring

Synopsis

This function extracts the part of a string between two indexes and returns it. If the “begin” index is less than 0 it’s treated as 0, and if it’s greater than the length of the string, an empty string is returned. If the “end” index is less than 0 or greater than the length of the string, it’s treated as if it had the length of the string as its value. If the “end” index is less than the “begin” index, an empty string is returned.

Syntax

String: fn:substring(string, begin
                     , 
                     end)

Parameters

Parameter name	Java type	Description
string	String	The string to extract from.
begin	int	The index of the first character to include, inclusive.
end	Int	The index of the last character to include, exclusive.

Example

You can't spell Evil without ${fn:substring('Evil', 1, 3)}