# String.parse_radix_str

## Function

Parses the current whitespace-delimited byte text into a UTF-8 string in the specified base.

## Syntax

```bt
string.parse_radix_str(radix)
```

## Parameters

| Parameters | Type | Required | Default value | Description |
| ------ | ------ | ------ | ------ | ------ |
| radix | Int | No | 10 | Base. |

## Return value

| Type | Description |
| ------ | ------ |
| String/Null | Parse and convert to UTF-8. Return string if successful; return Null if failed. |

## Example

```bt
result = '42 54'.parse_radix_str(16)

// Output: BT
print result
```

## Notes

- A single byte must be able to parse 0 to 255.
- The original string will not be modified.