1991 - Unicode 1994 - UTF-7 is not a Unicode 2003 - UTF-8 aka EASCII, 8 bit, 4 bytes 2006 - The Unicode Standard 5.0 #51 2017 - The Unicode Standard 10.0 History, ಠ_ಠ 4
'0'); \u41 // This is invalid \u0041 // This is valid All hexadecimal code points are case insensitive. '\uD83D' or '\ud83d' Hexadecimal can be represented in two ways: '\u0041' and '0x0041' 18 Usage in JS