This character is a Other Letter and is mainly used in the Bopomofo script.
The glyph is not a composition. Its East Asian Width is wide. In bidirectional text it is written from left to right. When changing direction it is not mirrored. U+312A offers a line break opportunity at its position, except in some numeric contexts.
El Wikipedia tiene la siguiente información acerca de este punto de código:
Bopomofo, also called Zhuyin Fuhao (注音符號; Zhùyīn fúhào; 'phonetic symbols'), or simply Zhuyin, is a transliteration system for Standard Chinese and other Sinitic languages. It is commonly used in Taiwan. It consists of 37 characters and five tone marks, which together can transcribe all possible sounds in Mandarin Chinese.
Bopomofo was first introduced in China during the 1910s by the Beiyang government, where it was used alongside Wade–Giles, a romanization system which used a modified Latin alphabet. Today, Bopomofo is more common in Taiwan than on the mainland, and is used as a secondary electronic input method for Taiwanese Mandarin, as well as in dictionaries and other non-official documents.
Representaciones
Sistema
Representación (click value to copy)
N.º
12586
UTF-8
E3 84 AA
UTF-16
31 2A
UTF-32
00 00 31 2A
URL-Quoted
%E3%84%AA
HTML hex reference
ㄪ
Mojibake mal de windows-1252
ㄪ
Codificación: GB18030 (hexadecimales bytes)
81 39 A8 36
dígrafo
v4
RFC 5137
\u'312A'
Bash and Zsh inside echo -e
\u312A
C and C++
\u312A
C#
\u312A
CSS
\00312A
Excel
=UNICHAR(12586)
Go
\u312A
JavaScript
\u312A
Modern JavaScript since ES6
\u{312a}
JSON
\u312A
Java
\u312A
Lua
\u{312A}
Matlab
char(12586)
Perl
"\x{312A}"
PHP
\u{312a}
PostgreSQL
U&'\312A'
PowerShell
`u{312A}
Python
\u312A
Ruby
\u{312a}
Rust
\u{312a}
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