This character is a Other Number and is commonly used, that is, in no specific script. The codepoint has the numeric value 1.
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+1D377 forms with similar adjacent characters prevents a line break inside it.
The Wikipedia has the following information about this codepoint:
Tally marks, also called hash marks, are a form of numeral used for counting. They can be thought of as a unary numeral system.
They are most useful in counting or tallying ongoing results, such as the score in a game or sport, as no intermediate results need to be erased or discarded. However, because of the length of large numbers, tallies are not commonly used for static text. Notched sticks, known as tally sticks, were also historically used for this purpose.
Representations
System
Representation (click value to copy)
NΒΊ
119671
UTF-8
F0 9D 8D B7
UTF-16
D8 34 DF 77
UTF-32
00 01 D3 77
URL-Quoted
%F0%9D%8D%B7
HTML hex reference
𝍷
Wrong windows-1252 Mojibake
Γ°ΒΒΒ·
Encoding: GB18030 (hex bytes)
94 32 FA 35
RFC 5137
\u'1D377'
Bash and Zsh inside echo -e
\U0001D377
C and C++
\U0001D377
C#
\U0001D377
CSS
\01D377
Excel
=UNICHAR(119671)
Go
\U0001D377
JavaScript
\uD834\uDF77
Modern JavaScript since ES6
\u{1d377}
JSON
\uD834\uDF77
Java
\uD834\uDF77
Lua
\u{1D377}
Matlab
char(119671)
Perl
"\x{1D377}"
PHP
\u{1d377}
PostgreSQL
U&'\+01D377'
PowerShell
`u{1D377}
Python
\U0001D377
Ruby
\u{1d377}
Rust
\u{1d377}
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