# Array.fill

## Function

Fills a range of the array with the specified value.

## Syntax

```bt
array.fill(value, start, end)
```

## Parameters

| Parameters | Type | Required | Default value | Description |
| ------ | ------ | ------ | ------ | ------ |
| value | Any | No | Empty | The value to write. |
| 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 the original array object. |

## Example

```bt
items = [1, 2, 3]
result = items.fill(0, 1, 3)

// Output: [1,0,0]
print result
```

## Notes

- This method will modify the original array.