# bytes.slice

## Function

Intercept the byte range of Bytes and return new Bytes.

## Syntax

```bt
bytes(value).slice(start, end)
```

## Parameters

| Parameters | Type | Required | Default value | Description |
|------|------|------|------|------|
| start | Int | No | `0` | Starting index, including this position. Supports counting negative numbers from the tail. |
| end | Int | No | Length in bytes | End index, excluding this position. Supports counting negative numbers from the tail. |

## Return value

| Type | Description |
|------|------|
| Bytes | New Bytes after interception. |

## Code Example

```bt
data = bytes('425400', 'hex')
part = data.slice(0, 2)

// Output: 4254
print part.to_hex()
```

## Notes

- Returns empty Bytes when `start >= end`.