This character is a Other Symbol 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+2798 forms with similar adjacent characters prevents a line break inside it.
The Wikipedia has the following information about this codepoint:
An arrow is a graphical symbol, such as ← or →, or a pictogram, used to point or indicate direction. In its simplest form, an arrow is a triangle, chevron, or concave kite, usually
affixed to a line segment or rectangle, and in more complex forms a representation of an actual arrow (e.g. ➵ U+27B5). The direction indicated by an arrow is the one along the length of the line or rectangle toward the single pointed end.
Representations
System
Representation (click value to copy)
Nº
10136
UTF-8
E2 9E 98
UTF-16
27 98
UTF-32
00 00 27 98
URL-Quoted
%E2%9E%98
HTML hex reference
➘
Wrong windows-1252 Mojibake
➘
Encoding: GB18030 (hex bytes)
81 37 CB 30
LATEX
\ding{216}
RFC 5137
\u'2798'
Bash and Zsh inside echo -e
\u2798
C and C++
\u2798
C#
\u2798
CSS
\002798
Excel
=UNICHAR(10136)
Go
\u2798
JavaScript
\u2798
Modern JavaScript since ES6
\u{2798}
JSON
\u2798
Java
\u2798
Lua
\u{2798}
Matlab
char(10136)
Perl
"\x{2798}"
PHP
\u{2798}
PostgreSQL
U&'\2798'
PowerShell
`u{2798}
Python
\u2798
Ruby
\u{2798}
Rust
\u{2798}
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