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## JSTL functions

Standard Syntax:
`<%@ taglib prefix="fn" uri="http://java.sun.com/jsp/jstl/functions" %>
`
XML Syntax:
`<anyxmlelement xmlns:fn="http://java.sun.com/jsp/jstl/functions" />
`

    JSTL 1.1 functions library

Tag Library Information
Display Name | JSTL functions
Version | 1.1
Short Name | fn
URI | http://java.sun.com/jsp/jstl/functions

Function Summary
`boolean` | `contains( java.lang.String, java.lang.String)` | Tests if an input string contains the specified substring.
`boolean` | `containsIgnoreCase( java.lang.String, java.lang.String)` | Tests if an input string contains the specified substring in a case insensitive way.
`boolean` | `endsWith( java.lang.String, java.lang.String)` | Tests if an input string ends with the specified suffix.
`java.lang.String` | `escapeXml( java.lang.String)` | Escapes characters that could be interpreted as XML markup.
`int` | `indexOf( java.lang.String, java.lang.String)` | Returns the index withing a string of the first occurrence of a specified substring.
`java.lang.String` | `join( java.lang.String[], java.lang.String)` | Joins all elements of an array into a string.
`int` | `length( java.lang.Object)` | Returns the number of items in a collection, or the number of characters in a string.
`java.lang.String` | `replace( java.lang.String, java.lang.String, java.lang.String)` | Returns a string resulting from replacing in an input string all occurrences of a "before" string into an "after" substring.
`java.lang.String[]` | `split( java.lang.String, java.lang.String)` | Splits a string into an array of substrings.
`boolean` | `startsWith( java.lang.String, java.lang.String)` | Tests if an input string starts with the specified prefix.
`java.lang.String` | `substring( java.lang.String, int, int)` | Returns a subset of a string.
`java.lang.String` | `substringAfter( java.lang.String, java.lang.String)` | Returns a subset of a string following a specific substring.
`java.lang.String` | `substringBefore( java.lang.String, java.lang.String)` | Returns a subset of a string before a specific substring.
`java.lang.String` | `toLowerCase( java.lang.String)` | Converts all of the characters of a string to lower case.
`java.lang.String` | `toUpperCase( java.lang.String)` | Converts all of the characters of a string to upper case.
`java.lang.String` | `trim( java.lang.String)` | Removes white spaces from both ends of a string.

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