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+2408 forms with similar adjacent characters prevents a line break inside it.
The Wikipedia has the following information about this codepoint:
Backspace (← Backspace) is the keyboard key that in typewriters originally pushed the carriage one position backwards, and in modern computer systems typically moves the display cursor one position backwards, deletes the character at that position, and shifts back any text after that position by one character.
Representations
System
Representation (click value to copy)
Nº
9224
UTF-8
E2 90 88
UTF-16
24 08
UTF-32
00 00 24 08
URL-Quoted
%E2%90%88
HTML hex reference
␈
Wrong windows-1252 Mojibake
âˆ
Encoding: GB18030 (hex bytes)
81 37 83 38
RFC 5137
\u'2408'
Bash and Zsh inside echo -e
\u2408
C and C++
\u2408
C#
\u2408
CSS
\002408
Excel
=UNICHAR(9224)
Go
\u2408
JavaScript
\u2408
Modern JavaScript since ES6
\u{2408}
JSON
\u2408
Java
\u2408
Lua
\u{2408}
Matlab
char(9224)
Perl
"\x{2408}"
PHP
\u{2408}
PostgreSQL
U&'\2408'
PowerShell
`u{2408}
Python
\u2408
Ruby
\u{2408}
Rust
\u{2408}
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