DIGIT ONE vs LATIN CAPITAL LETTER I
Embed This Widget
Add the script tag and a data attribute to embed this widget.
Embed via iframe for maximum compatibility.
<iframe src="https://unicodefyi.com/iframe/entity//" width="420" height="400" frameborder="0" style="border:0;border-radius:10px;max-width:100%" loading="lazy"></iframe>Paste this URL in WordPress, Medium, or any oEmbed-compatible platform.
https://unicodefyi.com/entity//Add a dynamic SVG badge to your README or docs.
[](https://unicodefyi.com/entity//)Use the native HTML custom element.
VS
Property Comparison
| Property | 1 U+0031 | I U+0049 |
|---|---|---|
| Name | DIGIT ONE | LATIN CAPITAL LETTER I |
| Block | Basic Latin | Basic Latin |
| Script | Zyyy | Latn |
| Category | Decimal Number (Nd) | Uppercase Letter (Lu) |
| Bidirectional | EN | L |
Encoding Comparison
| Format | U+0031 | U+0049 |
|---|---|---|
| unicode | U+0031 | U+0049 |
| decimal | 49 | 73 |
| htmldecimal | 1 | I |
| htmlhex | 1 | I |
| css | \0031 | \0049 |
| javascript | \u{31} | \u{49} |
| python | \u0031 | \u0049 |
| java | \u0031 | \u0049 |
| go | \u0031 | \u0049 |
| ruby | \u{31} | \u{49} |
| rust | \u{31} | \u{49} |
| ccpp | \u0031 | \u0049 |
| urlencoded | 1 | I |
| utf8bytes | 31 | 49 |
| utf16bebytes | 00 31 | 00 49 |
| utf32bebytes | 00 00 00 31 | 00 00 00 49 |
How to Distinguish
Both characters are in the Basic Latin block but use different scripts: DIGIT ONE uses Zyyy, while LATIN CAPITAL LETTER I uses Latn.
Tip: Paste the character into a hex editor or use
charCodeAt()
in JavaScript to check the actual codepoint.