| HTML Entity (dec) | 𝐽 |
| HTML Entity (hex) | 𝐽 |
| UTF-8 (hex) | 0xf09d90bd / 0xf0 0x9d 0x90 0xbd (4 bytes) |
| UTF-8 (dec) | 240, 157, 144, 189 (4 bytes) |
| UTF-16-BE (hex) | 0xd835dc3d / 0xd8 0x35 0xdc 0x3d (4 bytes) |
| UTF-16-BE (dec) | 216, 53, 220, 61 (4 bytes) |
| UTF-32-BE (hex) | 0x1d43d / 0x00 0x01 0xd4 0x3d (4 bytes) |
| UTF-32-BE (dec) | 0, 1, 212, 61 (4 bytes) |
| C/C++/Java source code | "\u1d43d" |
| Python source code | "\u1d43d" |