Character Encoding
UTF-8
0xF10x8F0xBF0xBF
UTF-16
0xD8FF0xDFFF
UTF-32
0x0004FFFF
Copy & Paste Codes
Unicode Escape
\u{4FFFF}
HTML Entity (Decimal)

HTML Entity (Hex)

CSS Code
\4FFFF
JavaScript/JSON
String.fromCodePoint(0x4FFFF)
Python
chr(0x4FFFF)
Ruby/PHP
chr(0x4FFFF)
Unix, C, PHP, JAVA
0x4FFFF
Perl
chr(0x4FFFF)
URL Encoded
%4ffff