# Array.last_index_of

## Function

Returns the index of the last occurrence of the specified value.

## Syntax

```bt
array.last_index_of(value)
```

## Parameters

| Parameters | Type | Required | Default value | Description |
| ------ | ------ | ------ | ------ | ------ |
| value | Any | No | None | The value to find. |

## Return value

| Type | Description |
| ------ | ------ |
| Int | Returns the subscript if found; returns -1 if not found. |

## Example

```bt
items = ['a', 'b', 'a']
result = items.last_index_of('a')

// Output: 2
print result
```

## Notes

- Comparisons use the BT value equality rule.