Favicon about indexmd HOT 4 OPEN

Ooh, if possible, it would be neat to change the favicon text to the innerText of the last element, iff it is exactly one character long. So you could smack an emoji at the end of your document and that would be the icon.

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...iff it is exactly one character long

After some experimentation, it turns out this is a bit trickier than expected.

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There is a solution, but ...
https://github.com/orling/grapheme-splitter/blob/master/index.js#L333
...I find it just a bit inelegant.

If anyone knows a solution as elegant as String('👩‍👩‍👧‍👧').graphemeLength == 1 (instead of 9001 lines of range comparisons) I'll gladly implement this.

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Oh snap, I think I got it, html can be inset in markdow, right? Including comments? I'm thinking:

<!-- favicon=text --> 

...where text can be anything...

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