This character is a Other Letter and is mainly used in the Thaana script.
The glyph is not a composition. It has no designated width in East Asian texts. In bidirectional text it is written as Arabic letter from right to left. When changing direction it is not mirrored. The word that U+0783 forms with similar adjacent characters prevents a line break inside it.
The Wikipedia has the following information about this codepoint:
Thaana, Tãnaa, Taana or Tāna ( ތާނަ ) is the present writing system of the Maldivian language spoken in the Maldives. Thaana has characteristics of both an abugida (diacritics, vowel-killer strokes) and a true alphabet (all vowels are written), with consonants derived from indigenous and Arabic numerals, and vowels derived from the vowel diacritics of the Arabic abjad. Maldivian orthography in Thaana is largely phonemic.
Representations
System
Representation (click value to copy)
Nº
1923
UTF-8
DE 83
UTF-16
07 83
UTF-32
00 00 07 83
URL-Quoted
%DE%83
HTML hex reference
ރ
Wrong windows-1252 Mojibake
Þƒ
Encoding: GB18030 (hex bytes)
81 31 A6 37
RFC 5137
\u'0783'
Bash and Zsh inside echo -e
\u0783
C and C++
\u0783
C#
\u0783
CSS
\000783
Excel
=UNICHAR(1923)
Go
\u0783
JavaScript
\u0783
Modern JavaScript since ES6
\u{783}
JSON
\u0783
Java
\u0783
Lua
\u{783}
Matlab
char(1923)
Perl
"\x{783}"
PHP
\u{783}
PostgreSQL
U&'\0783'
PowerShell
`u{783}
Python
\u0783
Ruby
\u{783}
Rust
\u{783}
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