Index error for replace_unified with certain emoji variations

[StephenTangCook]

I am using replace_unified to get the emoji from unified texts, but it fails for certain emojis with skintone variations. My usage is roughly:

import * as emojiConvertor from 'emoji-js';

emojiConverter.replace_unified(emojiUnified);

The error:

TypeError: Cannot read properties of undefined (reading '8')
    at emoji.replacement (/Users/stephencook/git/tightknit-app/packages/emoji-mapping/dist/create-emoji-mapping.cjs:206:77)
    
compiled.cjs:206
        var text_name = actual ? wrapper + actual + wrapper : self.data[idx][8] || wrapper + self.data[idx][3][0] + wrapper;

which appears to be coming from

js-emoji/build/emoji.js.template

Line 366 in 6b99ad1

var text_name = (actual) ? wrapper+actual+wrapper : self.data[idx][8] || wrapper+self.data[idx][3][0]+wrapper;

---

This is a subset of the failing emojis:

Error converting emoji with shortname 'woman-heart-man::skin-tone-2-2' and unified '\u{D83D}\u{DC69}\u{D83C}\u{DFFB}\u{200D}\u{2764}\u{FE0F}\u{200D}\u{D83D}\u{DC68}\u{D83C}\u{DFFB}'
Error converting emoji with shortname 'woman-heart-man::skin-tone-2-3' and unified '\u{D83D}\u{DC69}\u{D83C}\u{DFFB}\u{200D}\u{2764}\u{FE0F}\u{200D}\u{D83D}\u{DC68}\u{D83C}\u{DFFC}'
Error converting emoji with shortname 'woman-heart-man::skin-tone-2-4' and unified '\u{D83D}\u{DC69}\u{D83C}\u{DFFB}\u{200D}\u{2764}\u{FE0F}\u{200D}\u{D83D}\u{DC68}\u{D83C}\u{DFFD}'
Error converting emoji with shortname 'people_holding_hands::skin-tone-2-2' and unified '\u{D83E}\u{DDD1}\u{D83C}\u{DFFB}\u{200D}\u{D83E}\u{DD1D}\u{200D}\u{D83E}\u{DDD1}\u{D83C}\u{DFFB}'
Error converting emoji with shortname 'people_holding_hands::skin-tone-2-3' and unified '\u{D83E}\u{DDD1}\u{D83C}\u{DFFB}\u{200D}\u{D83E}\u{DD1D}\u{200D}\u{D83E}\u{DDD1}\u{D83C}\u{DFFC}'
Error converting emoji with shortname 'people_holding_hands::skin-tone-2-4' and unified '\u{D83E}\u{DDD1}\u{D83C}\u{DFFB}\u{200D}\u{D83E}\u{DD1D}\u{200D}\u{D83E}\u{DDD1}\u{D83C}\u{DFFD}'
Error converting emoji with shortname 'people_holding_hands::skin-tone-2-5' and unified '\u{D83E}\u{DDD1}\u{D83C}\u{DFFB}\u{200D}\u{D83E}\u{DD1D}\u{200D}\u{D83E}\u{DDD1}\u{D83C}\u{DFFE}'
Error converting emoji with shortname 'people_holding_hands::skin-tone-2-6' and unified '\u{D83E}\u{DDD1}\u{D83C}\u{DFFB}\u{200D}\u{D83E}\u{DD1D}\u{200D}\u{D83E}\u{DDD1}\u{D83C}\u{DFFF}'

The full list of failing emojis is here: failing_emoji_variations.txt