This character is a Other Letter and is mainly used in the Runic 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+16C4 forms with similar adjacent characters prevents a line break inside it.
The Wikipedia has the following information about this codepoint:
Jera (also Jeran, Jeraz, Yera) is the conventional name of the j-rune ᛃ of the Elder Futhark, from a reconstructed Common Germanic stem *jēra- meaning "harvest, (good) year".
The corresponding letter of the Gothic alphabet is Gothic 𐌾, named 𐌾𐌴𐍂 (jēr), also expressing /j/.
The Elder Futhark rune gives rise to the Anglo-Frisian ᛄ/j/, named gēr/jeːr/, and ᛡ/io/, named ior, and to the Younger Futhark ár rune ᛅ, which stands for /a/, as the /j/ phoneme disappears in late Proto-Norse.
Note that ᛆ also can be a variation of dotted Isaz used for /e/; e.g. in Dalecarlian runes.
Representations
System
Representation (click value to copy)
Nº
5828
UTF-8
E1 9B 84
UTF-16
16 C4
UTF-32
00 00 16 C4
URL-Quoted
%E1%9B%84
HTML hex reference
ᛄ
Wrong windows-1252 Mojibake
ᛄ
Encoding: GB18030 (hex bytes)
81 34 B3 32
RFC 5137
\u'16C4'
Bash and Zsh inside echo -e
\u16C4
C and C++
\u16C4
C#
\u16C4
CSS
\0016C4
Excel
=UNICHAR(5828)
Go
\u16C4
JavaScript
\u16C4
Modern JavaScript since ES6
\u{16c4}
JSON
\u16C4
Java
\u16C4
Lua
\u{16C4}
Matlab
char(5828)
Perl
"\x{16C4}"
PHP
\u{16c4}
PostgreSQL
U&'\16C4'
PowerShell
`u{16C4}
Python
\u16C4
Ruby
\u{16c4}
Rust
\u{16c4}
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