This character is a Decimal Number and is commonly used, that is, in no specific script. The codepoint has the decimal value 8.
The glyph is a wide version of the glyph Glyph for U+0038Digit Eight. Accordingly, its width in East Asian Text is fullwidth. In bidirectional text it is written as European number from left to right. When changing direction it is not mirrored. This number joins with other adjacent letters and numbers to form a word. U+FF18 offers a line break opportunity at its position, except in some numeric contexts.
The Wikipedia has the following information about this codepoint:
8 (eight) is the natural number following 7 and preceding 9.
Representations
System
Representation (click value to copy)
Nº
65304
UTF-8
EF BC 98
UTF-16
FF 18
UTF-32
00 00 FF 18
URL-Quoted
%EF%BC%98
HTML hex reference
8
Wrong windows-1252 Mojibake
8
Encoding: BIG5 (hex bytes)
A2 B7
Encoding: BIG5HKSCS (hex bytes)
A2 B7
Encoding: CP932 (hex bytes)
82 57
Encoding: CP949 (hex bytes)
A3 B8
Encoding: CP950 (hex bytes)
A2 B7
Encoding: EUC_JP (hex bytes)
A3 B8
Encoding: EUC_JIS_2004 (hex bytes)
A3 B8
Encoding: EUC_JISX0213 (hex bytes)
A3 B8
Encoding: EUC_KR (hex bytes)
A3 B8
Encoding: GB2312 (hex bytes)
A3 B8
Encoding: GBK (hex bytes)
A3 B8
Encoding: GB18030 (hex bytes)
A3 B8
Encoding: HZ (hex bytes)
7E 7B 23 38 7E 7D
Encoding: ISO2022_JP (hex bytes)
1B 24 42 23 38 1B 28 42
Encoding: ISO2022_JP_1 (hex bytes)
1B 24 42 23 38 1B 28 42
Encoding: ISO2022_JP_2 (hex bytes)
1B 24 42 23 38 1B 28 42
Encoding: ISO2022_JP_2004 (hex bytes)
1B 24 42 23 38 1B 28 42
Encoding: ISO2022_JP_3 (hex bytes)
1B 24 42 23 38 1B 28 42
Encoding: ISO2022_JP_EXT (hex bytes)
1B 24 42 23 38 1B 28 42
Encoding: ISO2022_KR (hex bytes)
1B 24 29 43 0E 23 38 0F
Encoding: JOHAB (hex bytes)
DA 48
Encoding: SHIFT_JIS (hex bytes)
82 57
Encoding: SHIFT_JIS_2004 (hex bytes)
82 57
Encoding: SHIFT_JISX0213 (hex bytes)
82 57
Adobe Glyph List
eightmonospace
RFC 5137
\u'FF18'
Bash and Zsh inside echo -e
\uFF18
C and C++
\uFF18
C#
\uFF18
CSS
\00FF18
Excel
=UNICHAR(65304)
Go
\uFF18
JavaScript
\uFF18
Modern JavaScript since ES6
\u{ff18}
JSON
\uFF18
Java
\uFF18
Lua
\u{FF18}
Matlab
char(65304)
Perl
"\x{FF18}"
PHP
\u{ff18}
PostgreSQL
U&'\FF18'
PowerShell
`u{FF18}
Python
\uFF18
Ruby
\u{ff18}
Rust
\u{ff18}
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