This character is a Otro símbolo and is mainly used in the Braille script.
The glyph is not a composition. It has no designated width in East Asian texts. In bidirectional text it is written from left to right. When changing direction it is not mirrored. The word that U+2800 forms with similar adjacent characters prevents a line break inside it.
El Wikipedia tiene la siguiente información acerca de este punto de código:
The Braille pattern dots-0 ( ⠀ ), also called a blank Braille pattern, is a 6-dot or 8-dot braille cell with no dots raised. It is represented by the Unicode code point U+2800, and in Braille ASCII with a space.
Representaciones
Sistema
Representación (click value to copy)
N.º
10240
UTF-8
E2 A0 80
UTF-16
28 00
UTF-32
00 00 28 00
URL-Quoted
%E2%A0%80
HTML hex reference
⠀
Mojibake mal de windows-1252
â €
Codificación: GB18030 (hexadecimales bytes)
81 37 D5 34
RFC 5137
\u'2800'
Bash and Zsh inside echo -e
\u2800
C and C++
\u2800
C#
\u2800
CSS
\002800
Excel
=UNICHAR(10240)
Go
\u2800
JavaScript
\u2800
Modern JavaScript since ES6
\u{2800}
JSON
\u2800
Java
\u2800
Lua
\u{2800}
Matlab
char(10240)
Perl
"\x{2800}"
PHP
\u{2800}
PostgreSQL
U&'\2800'
PowerShell
`u{2800}
Python
\u2800
Ruby
\u{2800}
Rust
\u{2800}
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