This character is a Other Symbol and is commonly used, that is, in no specific script.
The glyph is not a composition. It has no designated width in East Asian texts. In bidirectional text it acts as Other Neutral. When changing direction it is not mirrored. U+2764 offers a line break opportunity at its position, except in some numeric contexts.
The CLDR project calls this character “red heart” for use in screen reading software. It assigns these additional labels, e.g. for search in emoji pickers: emotion, heart, love, red.
This character is designated as an emoji. It will be rendered as monochrome character on conforming platforms. To enable colorful emoji display, you can combine it with Variation Selector-16: ❤️ See the Emojipedia for more details on this character’s emoji properties.
The Wikipedia has the following information about this codepoint:
As a common symbol throughout typographic history, the heart shape has found its way into many character sets and encodings, including those of Unicode. Some characters depict the shape directly, others reference it in a more derived manner.
Representations
System
Representation (click value to copy)
Nº
10084
UTF-8
E2 9D A4
UTF-16
27 64
UTF-32
00 00 27 64
URL-Quoted
%E2%9D%A4
HTML hex reference
❤
Wrong windows-1252 Mojibake
â¤
Encoding: GB18030 (hex bytes)
81 37 C5 38
LATEX
\ding{164}
RFC 5137
\u'2764'
Bash and Zsh inside echo -e
\u2764
C and C++
\u2764
C#
\u2764
CSS
\002764
Excel
=UNICHAR(10084)
Go
\u2764
JavaScript
\u2764
Modern JavaScript since ES6
\u{2764}
JSON
\u2764
Java
\u2764
Lua
\u{2764}
Matlab
char(10084)
Perl
"\x{2764}"
PHP
\u{2764}
PostgreSQL
U&'\2764'
PowerShell
`u{2764}
Python
\u2764
Ruby
\u{2764}
Rust
\u{2764}
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