Character Encoding
UTF-8
0xF30x8F0xBF0xBF
UTF-16
0xDAFF0xDFFF
UTF-32
0x000CFFFF
Copy & Paste Codes
Unicode Escape
\u{CFFFF}
HTML Entity (Decimal)

HTML Entity (Hex)

CSS Code
\CFFFF
JavaScript/JSON
String.fromCodePoint(0xCFFFF)
Python
chr(0xCFFFF)
Ruby/PHP
chr(0xCFFFF)
Unix, C, PHP, JAVA
0xCFFFF
Perl
chr(0xCFFFF)
URL Encoded
%cffff