# GetFunctionData

Lucee compat: Return information to of a Function as Struct

## Method Signature

```
GetFunctionData(functionName=[string])
```

### Arguments

| Argument       | Type     | Required | Description                                             | Default |
| -------------- | -------- | -------- | ------------------------------------------------------- | ------- |
| `functionName` | `string` | `true`   | The BIF function you want information for (Ex: listLen) |         |

## Examples

## Related

* [GetClientVariablesList](https://boxlang.ortusbooks.com/boxlang-framework/modularity/compat-cfml/reference/built-in-functions/system/getclientvariableslist)
* [GetComponentMetadata](https://boxlang.ortusbooks.com/boxlang-framework/modularity/compat-cfml/reference/built-in-functions/system/getcomponentmetadata)
* [GetContextRoot](https://boxlang.ortusbooks.com/boxlang-framework/modularity/compat-cfml/reference/built-in-functions/system/getcontextroot)
* [GetTagData](https://boxlang.ortusbooks.com/boxlang-framework/modularity/compat-cfml/reference/built-in-functions/system/gettagdata)
* [GetVariable](https://boxlang.ortusbooks.com/boxlang-framework/modularity/compat-cfml/reference/built-in-functions/system/getvariable)
* [ObjectLoad](https://boxlang.ortusbooks.com/boxlang-framework/modularity/compat-cfml/reference/built-in-functions/system/objectload)
* [ObjectSave](https://boxlang.ortusbooks.com/boxlang-framework/modularity/compat-cfml/reference/built-in-functions/system/objectsave)
* [SetVariable](https://boxlang.ortusbooks.com/boxlang-framework/modularity/compat-cfml/reference/built-in-functions/system/setvariable)
* [Throw](https://boxlang.ortusbooks.com/boxlang-framework/modularity/compat-cfml/reference/built-in-functions/system/throw)