string toupper string ?first? ?last?

Returns a value equal to string except that all lower (or title) case letters have been converted to upper case. If first is specified, it refers to the first char index in the string to start modifying. If last is specified, it refers to the char index in the string to stop at (inclusive). First and last may be specified as for the index method.

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See also:

• string
• string index
• string tolower
• string totitle

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