This character is a Other Punctuation and is commonly used, that is, in no specific script.
The glyph is not a composition. It has no designated width in East Asian texts. In bidirectional text it acts as Other Neutral. When changing direction it is not mirrored. The word that U+204A forms with similar adjacent characters prevents a line break inside it.
The Wikipedia has the following information about this codepoint:
Tironian notes (Latin: notae Tironianae) are a form of thousands of signs that were formerly used in a system of shorthand (Tironian shorthand) dating from the 1st century BCE and named after Tiro, a personal secretary to Marcus Tullius Cicero, who is often credited as their inventor. Tiro's system consisted of about 4,000 signs, extended to 5,000 signs by others. During the medieval period, Tiro's notation system was taught in European monasteries and expanded to a total of about 13,000 signs. The use of Tironian notes declined after 1100 but lasted into the 17th century. A few Tironian signs are still used today.
Representations
System
Representation (click value to copy)
Nº
8266
UTF-8
E2 81 8A
UTF-16
20 4A
UTF-32
00 00 20 4A
URL-Quoted
%E2%81%8A
HTML hex reference
⁊
Wrong windows-1252 Mojibake
âŠ
Encoding: GB18030 (hex bytes)
81 36 A9 34
RFC 5137
\u'204A'
Bash and Zsh inside echo -e
\u204A
C and C++
\u204A
C#
\u204A
CSS
\00204A
Excel
=UNICHAR(8266)
Go
\u204A
JavaScript
\u204A
Modern JavaScript since ES6
\u{204a}
JSON
\u204A
Java
\u204A
Lua
\u{204A}
Matlab
char(8266)
Perl
"\x{204A}"
PHP
\u{204a}
PostgreSQL
U&'\204A'
PowerShell
`u{204A}
Python
\u204A
Ruby
\u{204a}
Rust
\u{204a}
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