doc/tutorial/basics/bytes.md

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_JSON Sugar and other Goodness_

# Bytes

CUE distinguishes between a `string` and a `bytes` type.
Bytes are converted to base64 when emitting JSON.
Byte literals are defined with single quotes.
The following additional escape sequences are allowed in byte literals:

    \xnn    // arbitrary byte value defined as a 2-digit hexadecimal number
    \nnn   // arbitrary byte value defined as a 3-digit octal number
<!-- jba: this contradicts the spec, which has \nnn (no leading zero) -->

<!-- CUE editor -->
_bytes.cue:_
```
a: '\x03abc'
```

<!-- JSON result -->
`$ cue export bytes.cue`
```json
{
    "a": "A2FiYw=="
}
```