This is potentially dangerous, as it encourages dealing with text as an array of chars. But graphemes in Unicode, which represent a single symbol in a writing system (such as "H", "ๅฟ", or "๐"), can take up multiple chars in a string. The linked approaches only work if you can guarantee that your string only contains ASCII. See also: The Absolute Minimum Every Software Developer Must Know About Unicode in 2023 (Still No Excuses!)
this post was submitted on 19 Mar 2024
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Yes, good point - I'd forgotten about Unicode in this context.