This character is a Otro símbolo 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+2581 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.
El Wikipedia tiene la siguiente información acerca de este punto de código:
Block Elements is a Unicode block containing square block symbols of various fill and shading. Used along with block elements are box-drawing characters, shade characters, and terminal graphic characters. These can be used for filling regions of the screen and portraying drop shadows. Its block name in Unicode 1.0 was Blocks.
Representaciones
Sistema
Representación (click value to copy)
N.º
9601
UTF-8
E2 96 81
UTF-16
25 81
UTF-32
00 00 25 81
URL-Quoted
%E2%96%81
HTML hex reference
▁
Mojibake mal de windows-1252
â–
Codificación: BIG5 (hexadecimales bytes)
A2 62
Codificación: BIG5HKSCS (hexadecimales bytes)
A2 62
Codificación: CP950 (hexadecimales bytes)
A2 62
Codificación: GBK (hexadecimales bytes)
A8 78
Codificación: GB18030 (hexadecimales bytes)
A8 78
RFC 5137
\u'2581'
Bash and Zsh inside echo -e
\u2581
C and C++
\u2581
C#
\u2581
CSS
\002581
Excel
=UNICHAR(9601)
Go
\u2581
JavaScript
\u2581
Modern JavaScript since ES6
\u{2581}
JSON
\u2581
Java
\u2581
Lua
\u{2581}
Matlab
char(9601)
Perl
"\x{2581}"
PHP
\u{2581}
PostgreSQL
U&'\2581'
PowerShell
`u{2581}
Python
\u2581
Ruby
\u{2581}
Rust
\u{2581}
Haga clic en el botón de estrella junto a cada etiqueta para establecer esta representación como favorita o eliminarla de las favoritas. Las favoritas se mostrarán inicialmente. (Los favoritos se almacenan localmente en su equipo y no se envían nunca por Internet)