Unicode Character "⇔" (U+21D4)
The character ⇔ (Left Right Double Arrow) is represented by the Unicode codepoint U+21D4. It is encoded in the Arrows block, which belongs to the Basic Multilingual Plane. It was added to Unicode in version 1.1 (June, 1993). It is HTML encoded as ⇔.
Main Unicode Properties
| Name | Left Right Double Arrow | 
|---|---|
| Unicode Codepoint | U+21D4 | 
| Unicode Version | 1.1 (June, 1993) | 
| Block | Arrows | 
| Plane | Basic Multilingual Plane | 
Bidirectional Data
| Bidirectional class | Other Neutral (ON) | 
|---|---|
| Is mirrored? | No | 
Other Unicode Data
| Category | Math Symbol | 
|---|---|
| Script | Code for undetermined script | 
| Combining Class | Not Reordered | 
U+21D4 Conversion
| HTML (decimal) | ⇔ | 
|---|---|
| HTML (hex) | ⇔ | 
| HTML (named) | ⇔ | 
| URL Escape Code | %E2%87%94 | 
| CSS | \0021D4 | 
| JavaScript, JSON | \u21D4 | 
| C, C++, Java | \u21D4 | 
| Python | \u21D4 | 
| Rust | \u{21D4} | 
| Ruby | \u21D4 | 
How to type "⇔"
Preview
- ⇔ Times, Times New Roman, serif
- ⇔ Helvetica, Arial, sans-serif
- ⇔ Courier, Courier New, monospace
UTF Encodings
| UTF-8 (hex) | 0xE2 0x87 0x94 | 
|---|---|
| UTF-16 (hex) | 0x21D4 | 
| UTF-32 (hex) | 0x000021D4 | 
Characters based on "⇔" (U+21D4)
- 
                        ⇎ U+21CE
                        Left Right Double Arrow With Stroke