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Martin Atkins e7d71995f6 website: Document the remaining "collection" functions

This also renames some of the existing function pages whose source
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2018-10-16 18:47:33 -07:00

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layout	page_title	sidebar_current	description
functions	upper function	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.