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The Unicode character U+0030, officially named DIGIT ZERO, was introduced in Unicode version 1.1. It is part of the ASCII block, which belongs to the Basic Multilingual plane.
Categorized technically as a Decimal Number, this character typically falls under the Common script. In terms of text layout and rendering, the glyph is not a composition and has narrow in East Asian typography. When placed in bidirectional text, it behaves as an European Number character. Its visual representation remains not mirrored regardless of the reading direction.
As an officially designated emoji, this character can be displayed in colorful graphical formats on supported platforms. To explicitly request the colorful emoji presentation rather than a standard monochrome text symbol, developers can append the Variation Selector-16 (U+FE0F) directly after the character.
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| Nº |
48
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|---|---|
| UTF-8 |
30
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| UTF-16 |
00 30
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| UTF-32 |
00 00 00 30
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| URL-Quoted |
0
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| HTML hex reference |
0
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| RFC 5137 |
\u'0030'
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| Bash and Zsh (inside echo -e) |
\u0030
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| C and C++ |
\u0030
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| C# |
\u0030
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| CSS |
\000030
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| Excel |
=UNICHAR(48)
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| Go |
\u0030
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| JavaScript |
\u0030
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| Modern JavaScript (since ES6) |
\u{0030}
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| JSON |
\u0030
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| Java |
\u0030
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| Lua |
\u{0030}
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| Matlab |
char(48)
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| Perl |
\x{0030}
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| PHP |
\u{0030}
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| PostgreSQL |
U&'\0030'
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| PowerShell |
`u{0030}
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| Python |
\u0030
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| Ruby |
\u{0030}
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| Rust |
\u{0030}
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