Unicode Chapter 5

[sffc]

I didn't see this mentioned in your presentation, but you may be interested in perusing the section in the Unicode spec about how to efficiently sort UTF-16 in code point order.

https://www.unicode.org/versions/Unicode16.0.0/core-spec/chapter-5/#G21458

[mathiasbynens]

Thanks @sffc!

Since JavaScript strings support lone surrogates as well (making them not quite UTF-16), I wanted to emphasize this note from the linked section:

Note that this mechanism works correctly only on well-formed UTF-16 text. A modified algorithm must be used to operate on 16-bit Unicode strings that could contain isolated surrogates.