Discussion on: How to Reverse string in JavaScript

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Using :str.split('') does not work at all well with Unicode characters. [...str] is much better, but still not perfect.

peerreynders • Mar 27 '23 • Edited

import ReverseString from "./reverse-string"

// …

it('emoji grapheme clusters', () => {
    // multi-codepoint grapheme clusters
    const emojis =   [
      '\uD83C\uDF37',
      '\uD83C\uDF81',
      '\uD83D\uDCA9',
      '\uD83D\uDE1C',
      '\uD83D\uDC4D',
      '\uD83C\uDFF3\uFE0F\u200d\uD83C\uDF08'
    ];
    const input = emojis.join('');
    const expected = emojis.reverse().join('');
    expect(ReverseString.reverse(input)).toEqual(expected);
  })

grapheme-splitter

Intl.Segmenter - JavaScript | MDN

The Intl.Segmenter object enables locale-sensitive text segmentation, enabling you to get meaningful items (graphemes, words or sentences) from a string.

developer.mozilla.org