| purpose | apply JavaScript string encoding to a string |
|---|---|
| input | a selection of titles |
| suffix | R = New in: 5.1.23 optionally, the keyword rawunicode |
| output | the input with JavaScript string encodings applied |
The following substitutions are made:
| Character | Replacement | Condition |
|---|---|---|
\ | \\ | Always |
" | \" | Always |
| Carriage return (0x0d) | \\r | Always |
| Line feed (0x0a) | \\n | Always |
| Backspace (0x08) | \\b | Always |
| Form field (0x0c) | \\f | Always |
| Tab (0x09) | \\t | Always |
| Characters from 0x00 to 0x1f | \\x## where ## is two hex digits | Always |
| Characters from 0x80 to 0xffff | \\u#### where #### is four hex digits | If rawunicode suffix is not present (default) |
| Characters from 0x80 to 0xffff | New in: 5.1.23 Unchanged | If rawunicode suffix is present |
New in: 5.1.23 If the suffix rawunicode is present, Unicode characters above 0x80 (such as ß, ä, ñ or 🎄) will be passed through unchanged. Without the suffix, they will be substituted with \\u codes, which was the default behavior before 5.1.23.
- Note
- Technical note: Characters outside the Basic Multilingual Plane, such as 🎄 and other emojis, will be encoded as a UTF-16 surrogate pair, i.e. with two
\usequences.
Also see the jsonstringify Operator.