# Array.slice

## Function

Copy the array fragment according to the starting and ending indexes.

## Syntax

```bt
array.slice(start, end)
```

## Parameters

| Parameters | Type | Required | Default value | Description |
| ------ | ------ | ------ | ------ | ------ |
| start | Int | No | 0 | Starting subscript; a negative number means counting backwards from the tail. |
| end | Int | No | Array length | End subscript, excluding this position; a negative number means backward calculation from the tail. |

## Return value

| Type | Description |
| ------ | ------ |
| Array | Returns a new array. |

## Example

```bt
items = [1, 2, 3, 4]
result = items.slice(1, 3)

// Output: [2,3]
print result
```

## Notes

- The original array will not be modified.