# Object.keys

## Function

Returns an array of object key names.

## Syntax

```bt
object.keys()
```

## Parameters

No parameters.

## Return value

| Type | Description |
| ------ | ------ |
| Array | Returns a string array of key names. |

## Example

```bt
user = {name: 'BT', age: 1}
result = user.keys()

// Output: ["name","age"]
print result
```

## Notes

- Key order maintains the current insertion order of objects.