<function name="upper" parent="string" type="libraryfunc"> <description>Changes any lower-case letters in a string to upper-case letters.</description>⤶ <description>⤶ Changes any lower-case letters in a string to upper-case letters.⤶ <note>This function doesn't work on special non-English UTF-8 characters.</note>⤶ </description>⤶ <realm>Shared and Menu</realm> <args> <arg name="str" type="string">The string to convert.</arg> </args> <rets> <ret name="" type="string">A string representing the value of a string converted to upper-case.</ret> </rets> </function> <example> <description>Demonstrates the use of this function.</description> <code> print( string.upper( "ABCDEFG" ) ) print( string.upper( "AbCdefG" ) ) print( string.upper( "abcdefg" ) ) print( string.upper( "1234567890" ) ) </code> <output> ```⤶ ABCDEFG ABCDEFG ABCDEFG 1234567890 ```⤶ </output> ⤶ </example></example>