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language	upper - Functions - Configuration Language	docs-funcs-string-upper	The upper function converts all cased letters in the given string to uppercase.

upper Function

upper converts all cased letters in the given string to uppercase.

Examples

> upper("hello")
HELLO
> upper("алло!")
АЛЛО!

This function uses Unicode's definition of letters and of upper- and lowercase.

Related Functions

• lower converts letters in a string to lowercase.
• title converts the first letter of each word in a string to uppercase.