Emoji Encoding, � Unicode, & Internationalization

on YouTube ↗34m

" summary

Explains why apparent single glyphs are multiple code units: emoji live on the astral plane so they need surrogate pairs in UTF‑16, making examples like 👩🏿‍🎤 length = 7 and family.length = 11 actually true in JavaScript. Shows practical fixes: use DevTools to inspect code units and string.normalize to handle combining marks. Notes UTF‑8 as web default, Unicode’s 17 planes and ~1M code points, and that anyone can submit an emoji proposal.

AI-written summary · about

" chapters (15)

1. 0:00Introduction
2. 0:55Agenda
3. 7:10Unicode
4. 13:00Combining Marks
5. 13:35String Normalization
6. 15:15Unicode Emoji
7. 15:50Emoji Code Units
8. 19:05Variation Selector
9. 19:35Skin Tone Modifier
10. 20:35Emoji Today
11. 22:00New Emojis
12. 24:25Questions
13. 25:25Changing Emojis
14. 27:25Twitter Emojis
15. 28:25Emoji Diversity

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