The JSTL function provides a number of standard functions, most of these functions are common string manipulation functions. The syntax used for including JSTL function library in your JSP is:
| JSTL Functions |
Description |
| fn:contains() |
It is used to test if an input string containing the specified substring in a program. |
| fn:containsIgnoreCase() |
It is used to test if an input string contains the specified substring as a case insensitive way. |
| fn:endsWith() |
It is used to test if an input string ends with the specified suffix. |
| fn:escapeXml() |
It escapes the characters that would be interpreted as XML markup. |
| fn:indexOf() |
It returns an index within a string of first occurrence of a specified substring. |
| fn:trim() |
It removes the blank spaces from both the ends of a string. |
| fn:startsWith() |
It is used for checking whether the given string is started with a particular string value. |
| fn:split() |
It splits the string into an array of substrings. |
| fn:toLowerCase() |
It converts all the characters of a string to lower case. |
| fn:toUpperCase() |
It converts all the characters of a string to upper case. |
| fn:substring() |
It returns the subset of a string according to the given start and end position. |
| fn:substringAfter() |
It returns the subset of string after a specific substring. |
| fn:substringBefore() |
It returns the subset of string before a specific substring. |
| fn:length() |
It returns the number of characters inside a string, or the number of items in a collection. |
| fn:replace() |
It replaces all the occurrence of a string with another string sequence. |
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