This character is a Other Letter and is mainly used in the Devanagari 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+0908 forms with similar adjacent characters prevents a line break inside it. The glyph can be confused with one other glyph.
The Wikipedia has the following information about this codepoint:
Ī is a vowel of Indic abugidas. In modern Indic scripts, Ī is derived from the early "Ashoka" Brahmi letter . As an Indic vowel, Ī comes in two normally distinct forms: 1) as an independent letter, and 2) as a vowel sign for modifying a base consonant. Bare consonants without a modifying vowel sign have the inherent "A" vowel.
Representations
System
Representation (click value to copy)
Nº
2312
UTF-8
E0 A4 88
UTF-16
09 08
UTF-32
00 00 09 08
URL-Quoted
%E0%A4%88
HTML hex reference
ई
Wrong windows-1252 Mojibake
ई
Encoding: GB18030 (hex bytes)
81 31 CD 36
Adobe Glyph List
iideva
RFC 5137
\u'0908'
Bash and Zsh inside echo -e
\u0908
C and C++
\u0908
C#
\u0908
CSS
\000908
Excel
=UNICHAR(2312)
Go
\u0908
JavaScript
\u0908
Modern JavaScript since ES6
\u{908}
JSON
\u0908
Java
\u0908
Lua
\u{908}
Matlab
char(2312)
Perl
"\x{908}"
PHP
\u{908}
PostgreSQL
U&'\0908'
PowerShell
`u{908}
Python
\u0908
Ruby
\u{908}
Rust
\u{908}
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