π is the Unicode emoji BOOKMARK TABS, code point U+1F4D1 (decimal 128209) in the Miscellaneous Symbols and Pictographs block, added in Unicode 6.0. In HTML write 📑, and in UTF-8 it is the 4 bytes F0 9F 93 91.
Codes
| Where | How to write it |
|---|---|
| Code point | U+1F4D1 |
| Decimal | 128209 |
| UTF-8 bytes | F0 9F 93 91 |
| UTF-16 (big-endian) | D83D DCD1 |
| UTF-32 | 0001F4D1 |
| HTML decimal | 📑 |
| HTML hex | 📑 |
| CSS | \1F4D1 |
| JavaScript | \u{1F4D1} or \uD83D\uDCD1 |
| JSON | \uD83D\uDCD1 |
| Python | \U0001F4D1 |
| Python by name | \N{BOOKMARK TABS} |
| Java, C# | \uD83D\uDCD1 |
| Rust, Swift | \u{1F4D1} |
| Go, C, C++ | \U0001F4D1 |
| URL (percent-encoded) | %F0%9F%93%91 |
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 | BOOKMARK TABS |
| Emoji name | bookmark tabs |
| Code point | U+1F4D1 (decimal 128209) |
| Block | Miscellaneous Symbols and Pictographs (U+1F300βU+1F5FF) |
| General category | So: Other symbol |
| Script | Common |
| Bidirectional class | ON: Other neutral |
| Mirrored in right-to-left text | No |
| First in Unicode version | 6.0 |
Nearby in Miscellaneous Symbols and Pictographs
- π U+1F4C9 Chart decreasing
- π U+1F4CA Bar chart
- π U+1F4CB Clipboard
- π U+1F4CC Pushpin
- π U+1F4CD Round pushpin
- π U+1F4CE Paperclip
- π U+1F4CF Straight ruler
- π U+1F4D0 Triangular ruler
- π U+1F4D2 Ledger
- π U+1F4D3 Notebook
- π U+1F4D4 Notebook with decorative cover
- π U+1F4D5 Closed book
- π U+1F4D6 Open book
- π U+1F4D7 Green book
- π U+1F4D8 Blue book
- π U+1F4D9 Orange book
All 768 characters: Miscellaneous Symbols and Pictographs.
Official reference
Questions people ask
- What is the HTML code for π?
- Use 📑 (decimal) or 📑 (hex).
- What is the UTF-8 encoding of U+1F4D1?
- F0 9F 93 91 (hex), 4 bytes. In a URL it is %F0%9F%93%91.
- How do I write U+1F4D1 in JavaScript or Python?
- JavaScript: \u{1F4D1} or \uD83D\uDCD1. Python: \U0001F4D1.
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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