Third bug report this year from a form that "limits names to 20 characters". 'é'.length is 2 in JS (e + combining accent), while 'é' typed as one code point is 1. They look identical. Most emoji are 2, because length counts UTF-16 units. The family emoji with zero-width joiners is 11. What to use depends on why you're counting: - bytes for a storage limit: Buffer.byteLength or TextEncoder - what …