The glyph is not a composition. Its East Asian Width is narrow. In bidirectional text it is written from left to right. When changing direction it is not mirrored. The word that U+0066 forms with similar adjacent characters prevents a line break inside it. The glyph can be confused with 28 other glyphs.
The Wikipedia has the following information about this codepoint:
F, or f, is the sixth letter of the Latin alphabet and many modern alphabets influenced by it, including the modern English alphabet and the alphabets of all other modern western European languages. Its name in English is ef (pronounced ), and the plural is efs.
Representations
System
Representation (click value to copy)
Nº
102
UTF-8
66
UTF-16
00 66
UTF-32
00 00 00 66
URL-Quoted
%66
HTML hex reference
f
Encoding: ASCII (hex bytes)
66
Encoding: BIG5 (hex bytes)
66
Encoding: BIG5HKSCS (hex bytes)
66
Encoding: CP037 (hex bytes)
86
Encoding: CP273 (hex bytes)
86
Encoding: CP424 (hex bytes)
86
Encoding: CP437 (hex bytes)
66
Encoding: CP500 (hex bytes)
86
Encoding: CP720 (hex bytes)
66
Encoding: CP737 (hex bytes)
66
Encoding: CP775 (hex bytes)
66
Encoding: CP850 (hex bytes)
66
Encoding: CP852 (hex bytes)
66
Encoding: CP855 (hex bytes)
66
Encoding: CP856 (hex bytes)
66
Encoding: CP857 (hex bytes)
66
Encoding: CP858 (hex bytes)
66
Encoding: CP860 (hex bytes)
66
Encoding: CP861 (hex bytes)
66
Encoding: CP862 (hex bytes)
66
Encoding: CP863 (hex bytes)
66
Encoding: CP864 (hex bytes)
66
Encoding: CP865 (hex bytes)
66
Encoding: CP866 (hex bytes)
66
Encoding: CP869 (hex bytes)
66
Encoding: CP874 (hex bytes)
66
Encoding: CP875 (hex bytes)
86
Encoding: CP932 (hex bytes)
66
Encoding: CP949 (hex bytes)
66
Encoding: CP950 (hex bytes)
66
Encoding: CP1006 (hex bytes)
66
Encoding: CP1026 (hex bytes)
86
Encoding: CP1125 (hex bytes)
66
Encoding: CP1140 (hex bytes)
86
Encoding: CP1250 (hex bytes)
66
Encoding: CP1251 (hex bytes)
66
Encoding: CP1252 (hex bytes)
66
Encoding: CP1253 (hex bytes)
66
Encoding: CP1254 (hex bytes)
66
Encoding: CP1255 (hex bytes)
66
Encoding: CP1256 (hex bytes)
66
Encoding: CP1257 (hex bytes)
66
Encoding: CP1258 (hex bytes)
66
Encoding: EUC_JP (hex bytes)
66
Encoding: EUC_JIS_2004 (hex bytes)
66
Encoding: EUC_JISX0213 (hex bytes)
66
Encoding: EUC_KR (hex bytes)
66
Encoding: GB2312 (hex bytes)
66
Encoding: GBK (hex bytes)
66
Encoding: GB18030 (hex bytes)
66
Encoding: HZ (hex bytes)
66
Encoding: ISO2022_JP (hex bytes)
66
Encoding: ISO2022_JP_1 (hex bytes)
66
Encoding: ISO2022_JP_2 (hex bytes)
66
Encoding: ISO2022_JP_2004 (hex bytes)
66
Encoding: ISO2022_JP_3 (hex bytes)
66
Encoding: ISO2022_JP_EXT (hex bytes)
66
Encoding: ISO2022_KR (hex bytes)
66
Encoding: LATIN_1 (hex bytes)
66
Encoding: ISO8859_2 (hex bytes)
66
Encoding: ISO8859_3 (hex bytes)
66
Encoding: ISO8859_4 (hex bytes)
66
Encoding: ISO8859_5 (hex bytes)
66
Encoding: ISO8859_6 (hex bytes)
66
Encoding: ISO8859_7 (hex bytes)
66
Encoding: ISO8859_8 (hex bytes)
66
Encoding: ISO8859_9 (hex bytes)
66
Encoding: ISO8859_10 (hex bytes)
66
Encoding: ISO8859_11 (hex bytes)
66
Encoding: ISO8859_13 (hex bytes)
66
Encoding: ISO8859_14 (hex bytes)
66
Encoding: ISO8859_15 (hex bytes)
66
Encoding: ISO8859_16 (hex bytes)
66
Encoding: JOHAB (hex bytes)
66
Encoding: KOI8_R (hex bytes)
66
Encoding: KOI8_T (hex bytes)
66
Encoding: KOI8_U (hex bytes)
66
Encoding: KZ1048 (hex bytes)
66
Encoding: MAC_CYRILLIC (hex bytes)
66
Encoding: MAC_GREEK (hex bytes)
66
Encoding: MAC_ICELAND (hex bytes)
66
Encoding: MAC_LATIN2 (hex bytes)
66
Encoding: MAC_ROMAN (hex bytes)
66
Encoding: MAC_TURKISH (hex bytes)
66
Encoding: PTCP154 (hex bytes)
66
Encoding: SHIFT_JIS (hex bytes)
66
Encoding: SHIFT_JIS_2004 (hex bytes)
66
Encoding: SHIFT_JISX0213 (hex bytes)
66
Encoding: CP037 (hex bytes)
86
Encoding: CP1025 (hex bytes)
86
Encoding: CP1047 (hex bytes)
86
Encoding: CP1097 (hex bytes)
86
Encoding: CP1112 (hex bytes)
86
Encoding: CP1122 (hex bytes)
86
Encoding: CP1123 (hex bytes)
86
Encoding: CP1140 (hex bytes)
86
Encoding: CP1141 (hex bytes)
86
Encoding: CP1142 (hex bytes)
86
Encoding: CP1143 (hex bytes)
86
Encoding: CP1144 (hex bytes)
86
Encoding: CP1145 (hex bytes)
86
Encoding: CP1146 (hex bytes)
86
Encoding: CP1147 (hex bytes)
86
Encoding: CP1148 (hex bytes)
86
Encoding: CP1148MS (hex bytes)
86
Encoding: CP1149 (hex bytes)
86
Encoding: CP273 (hex bytes)
86
Encoding: CP277 (hex bytes)
86
Encoding: CP278 (hex bytes)
86
Encoding: CP280 (hex bytes)
86
Encoding: CP284 (hex bytes)
86
Encoding: CP285 (hex bytes)
86
Encoding: CP290 (hex bytes)
67
Encoding: CP297 (hex bytes)
86
Encoding: CP420 (hex bytes)
86
Encoding: CP424 (hex bytes)
86
Encoding: CP500 (hex bytes)
86
Encoding: CP500MS (hex bytes)
86
Encoding: CP833 (hex bytes)
86
Encoding: CP838 (hex bytes)
86
Encoding: CP870 (hex bytes)
86
Encoding: CP871 (hex bytes)
86
Encoding: CP875 (hex bytes)
86
AGL: Latin-1
f
AGL: Latin-2
f
AGL: Latin-3
f
AGL: Latin-4
f
AGL: Latin-5
f
Adobe Glyph List
f
digraph
f
RFC 5137
\u'0066'
Bash and Zsh inside echo -e
\u0066
C and C++
\u0066
C#
\u0066
CSS
\000066
Excel
=UNICHAR(102)
Go
\u0066
JavaScript
\u0066
Modern JavaScript since ES6
\u{66}
JSON
\u0066
Java
\u0066
Lua
\u{66}
Matlab
char(102)
Perl
"\x{66}"
PHP
\u{66}
PostgreSQL
U&'\0066'
PowerShell
`u{66}
Python
\u0066
Ruby
\u{66}
Rust
\u{66}
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