i18n

ISO Standards

• 语言码：ISO 639
• 文字码：ISO 15924
• 国家和地区码：ISO 3166
• 货币码：ISO 4217
• 日期时间规范：ISO 8601

IETF Standards

• BCP47

Unicode

• https://cldr.unicode.org/
• https://icu.unicode.org/

W3C

• https://www.w3.org/standards/webdesign/i18n

i18n in JavaScript (ECMA 402)

• ECMA 402
• Intl from Mozilla
• Intl.js

Other Libraries

• https://github.com/google/libphonenumber
• https://formatjs.io/

---

字符折叠

café and cafe\u0301 outputs café

https://blog.csdn.net/weixin_38492159/article/details/107135663
https://www.w3.org/wiki/I18N/CanonicalNormalizationIssues