[Turn]jstl-functions label for detailed

Name of function	Function description	Examples of Use
Fn:contains	Determine if a string contains another string	<c:if test= "${fn:contains (name, SearchString)}" >
Fn:containsignorecase	Determines whether a string contains another string (case-insensitive)	<c:if test= "${fn:containsignorecase (name, SearchString)}" >
Fn:endswith	Determines whether a string ends with a different string	<c:if test= "${fn:endswith (filename,". txt ")}" >
Fn:escapexml	Turn some characters into XML representations, such as < characters should be converted to &lt;	${fn:escapexml (Param:info)}
Fn:indexof	The position where the substring appears in the parent string	${fn:indexof (Name, "-")}
Fn:join	Unites the data in the array into a new string and uses the specified character format to open the	${fn:join (Array, ";")}
Fn:length	Gets the length of the string, or the size of the array	${fn:length (Shoppingcart.products)}
Fn:replace	Replace the character specified in the string	${fn:replace (Text, "-", "& #149;")}
Fn:split	Segmentation the string according to the specified word	${fn:split (Customernames, ";")}
Fn:startswith	Determines whether a string starts with a substring	<c:if test= "${fn:startswith (product.id," 100-")}" >
Fn:substring	Get child string	${fn:substring (Zip, 6,-1)}
Fn:substringafter	Gets the substring starting at the location of a character	${fn:substringafter (Zip, "-")}
Fn:substringbefore	Gets the substring from the beginning to the location of a character	${fn:substringbefore (Zip, "-")}
Fn:tolowercase	Convert to lowercase	${fn.tolowercase (Product.name)}
Fn:touppercase	Convert to uppercase characters	${fn. Uppercase (Product.name)}
Fn:trim	Remove spaces before and after a string	${fn.trim (name)}

Function	Describe
Fn:contains (string, substring)	Returns true if the parameter string contains the parameter substring
Fn:containsignorecase (string, substring)	Returns true if the parameter string contains the parameter substring (ignoring case)
Fn:endswith (string, suffix)	Returns true if the argument string ends with the argument suffix
Fn:escapexml (String)	Convert XML (and HTML) that has special meaning to the corresponding XML character entity code, and return
Fn:indexof (string, substring)	Returns the position of the first occurrence of the parameter substring in the parameter string
Fn:join (array, separator)	Separator a given array array together with the given spacer, forming a new string and returning it.
Fn:length (item)	Returns the number of elements contained in the parameter item. The parameter item type is an array, a collection, or a string. If it is of type string, the return value is the number of characters in string.
Fn:replace (String, before, after)	Returns a String object. Replaces all occurrences of a parameter before string in a parameter string with a parameter after string, and returns the replaced result
Fn:split (string, separator)	Returns an array that splits the argument string with the parameter separator, and each part of the split is an element of the array
Fn:startswith (string, prefix)	Returns true if the argument string starts with the argument prefix
Fn:substring (string, begin, end)	Returns the string part of the argument, starting with the argument begin to the end position of the argument, including the character of the end position
Fn:substringafter (string, substring)	Returns the part of the string that follows the parameter substring in the argument string
Fn:substringbefore (string, substring)	Returns the part of the string that precedes the argument substring in the argument string
Fn:tolowercase (String)	Converts all characters of the argument string to lowercase and returns it
Fn:touppercase (String)	Converts all characters of the argument string to uppercase and returns it
Fn:trim (String)	Strips the argument string from the end of the space and returns it

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