某协议要求显示标签最多占 64 个 UTF-8 字节。哪项检查符合契约？

某协议要求显示标签最多占 64 个 UTF-8 字节。哪项检查符合契约？

1. text.length <= 64
2. [...text].length <= 64
3. new TextEncoder().encode(text).length <= 64
4. [...new Intl.Segmenter("en", { granularity: "grapheme" }).segment(text)].length <= 64