This character is a Nonspacing Mark and inherits its script property from the preceding character.
The glyph is not a composition. Its width in East Asian texts is determined by its context. It can be displayed wide or narrow. In bidirectional text it acts as Nonspacing Mark. When changing direction it is not mirrored. U+E01EF prohibits a line break before it.
The Wikipedia has the following information about this codepoint:
Variation Selectors Supplement is a Unicode block containing additional variation selectors beyond those found in the Variation Selectors block.
These combining characters are named variation selector-17 (for U+E0100) through to variation selector-256 (U+E01EF), abbreviated VS17 – VS256.
As of 12 December 2017, VS17 (U+E0100) to VS48 (U+E011F) are used in ideographic variation sequences in the Unicode Ideographic Variation Database (IVD). These selectors are known as Ideographic Variation Selectors (IVS). They are not listed in the list of standardized variation sequence, instead they are listed in another Ideographic Variation Database.
Representations
System
Representation (click value to copy)
Nº
917999
UTF-8
F3 A0 87 AF
UTF-16
DB 40 DD EF
UTF-32
00 0E 01 EF
URL-Quoted
%F3%A0%87%AF
HTML hex reference
󠇯
Wrong windows-1252 Mojibake
â—Œó ‡¯
abbreviation
VS256
Encoding: GB18030 (hex bytes)
D3 36 C7 33
RFC 5137
\u'E01EF'
Bash and Zsh inside echo -e
\U000E01EF
C and C++
\U000E01EF
C#
\U000E01EF
CSS
\0E01EF
Excel
=UNICHAR(917999)
Go
\U000E01EF
JavaScript
\uDB40\uDDEF
Modern JavaScript since ES6
\u{e01ef}
JSON
\uDB40\uDDEF
Java
\uDB40\uDDEF
Lua
\u{E01EF}
Matlab
char(917999)
Perl
"\x{E01EF}"
PHP
\u{e01ef}
PostgreSQL
U&'\+0E01EF'
PowerShell
`u{E01EF}
Python
\U000E01EF
Ruby
\u{e01ef}
Rust
\u{e01ef}
Click the star button next to each label to set this representation as favorite or remove it from the favorites. Favorites will be shown initially. (Favorites are stored locally on your computer and never sent over the internet.)