How to reverse a string that contains complicated emojis?

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If you’re able to, use the _.split() function provided by lodash. From version 4.0 onwards, _.split() is capable of splitting unicode emojis.

Using the native .reverse().join('') to reverse the ‘characters’ should work just fine with emojis containing zero-width joiners

function reverse(txt) { return _.split(txt, '').reverse().join(''); }

const text="Hello world👩‍🦰👩‍👩‍👦‍👦";
console.log(reverse(text));
<script src="https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.20/lodash.min.js" integrity="sha512-90vH1Z83AJY9DmlWa8WkjkV79yfS2n2Oxhsi2dZbIv0nC4E6m5AbH8Nh156kkM7JePmqD6tcZsfad1ueoaovww==" crossorigin="anonymous"></script>

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