π is the Unicode emoji GRINNING FACE, code point U+1F600 (decimal 128512) in the Emoticons block, added in Unicode 6.1. In HTML write 😀, and in UTF-8 it is the 4 bytes F0 9F 98 80.
Codes
| Where | How to write it |
|---|---|
| Code point | U+1F600 |
| Decimal | 128512 |
| UTF-8 bytes | F0 9F 98 80 |
| UTF-16 (big-endian) | D83D DE00 |
| UTF-32 | 0001F600 |
| HTML decimal | 😀 |
| HTML hex | 😀 |
| CSS | \1F600 |
| JavaScript | \u{1F600} or \uD83D\uDE00 |
| JSON | \uD83D\uDE00 |
| Python | \U0001F600 |
| Python by name | \N{GRINNING FACE} |
| Java, C# | \uD83D\uDE00 |
| Rust, Swift | \u{1F600} |
| Go, C, C++ | \U0001F600 |
| URL (percent-encoded) | %F0%9F%98%80 |
JavaScript and JSON strings store text as UTF-16, so this character takes two code units (a surrogate pair) and "π".length is 2. Python 3 strings count code points, so its length there is 1.
Properties
| Property | Value |
|---|---|
| Name | GRINNING FACE |
| Emoji name | grinning face |
| Code point | U+1F600 (decimal 128512) |
| Block | Emoticons (U+1F600βU+1F64F) |
| General category | So: Other symbol |
| Script | Common |
| Bidirectional class | ON: Other neutral |
| Mirrored in right-to-left text | No |
| First in Unicode version | 6.1 |
Nearby in Emoticons
- π U+1F601 Beaming face with smiling eyes
- π U+1F602 Face with tears of joy
- π U+1F603 Grinning face with big eyes
- π U+1F604 Grinning face with smiling eyes
- π U+1F605 Grinning face with sweat
- π U+1F606 Grinning squinting face
- π U+1F607 Smiling face with halo
- π U+1F608 Smiling face with horns
All 80 characters: Emoticons.
Official reference
Questions people ask
- What is the HTML code for π?
- Use 😀 (decimal) or 😀 (hex).
- What is the UTF-8 encoding of U+1F600?
- F0 9F 98 80 (hex), 4 bytes. In a URL it is %F0%9F%98%80.
- How do I write U+1F600 in JavaScript or Python?
- JavaScript: \u{1F600} or \uD83D\uDE00. Python: \U0001F600.
Source
Unicode Character Database 18.0.0 (Unicode License v3) and the Unicode emoji test data; HTML entity names from the WHATWG HTML Standard (CC BY 4.0). The encodings above are computed from the code point and checked against Python's encoders. How the character looks depends on your fonts.
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