This character is a Other Symbol and is commonly used, that is, in no specific script.
The glyph is not a composition. Its width in East Asian texts is determined by its context. It can be displayed wide or narrow. In bidirectional text it acts as Other Neutral. When changing direction it is not mirrored. If its East Asian Width is “narrow”, U+26DA forms a word with similar characters, which prevents a line break inside it. Otherwise it allows line breaks around it, except in some numeric contexts.
The Wikipedia has the following information about this codepoint:
Miscellaneous Symbols is a Unicode block (U+2600–U+26FF) containing glyphs representing concepts from a variety of categories: astrological, astronomical, chess, dice, musical notation, political symbols, recycling, religious symbols, trigrams, warning signs, and weather, among others.
Representations
System
Representation (click value to copy)
Nº
9946
UTF-8
E2 9B 9A
UTF-16
26 DA
UTF-32
00 00 26 DA
URL-Quoted
%E2%9B%9A
HTML hex reference
⛚
Wrong windows-1252 Mojibake
⛚
Encoding: GB18030 (hex bytes)
81 37 B8 30
RFC 5137
\u'26DA'
Bash and Zsh inside echo -e
\u26DA
C and C++
\u26DA
C#
\u26DA
CSS
\0026DA
Excel
=UNICHAR(9946)
Go
\u26DA
JavaScript
\u26DA
Modern JavaScript since ES6
\u{26da}
JSON
\u26DA
Java
\u26DA
Lua
\u{26DA}
Matlab
char(9946)
Perl
"\x{26DA}"
PHP
\u{26da}
PostgreSQL
U&'\26DA'
PowerShell
`u{26DA}
Python
\u26DA
Ruby
\u{26da}
Rust
\u{26da}
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