- TIBCO BusinessEvents®
- Standard
- Instance
- PropertyArray

# Instance.PropertyArray.clear()

## Signature

`void clear (PropertyArray arr)`

## Domain

ACTION, BUI

## Description

Removes all elements from `arr`. For a Concept Array, you will have to loop and delete each instance using: `Instance.PropertyArray.removeContainedConcept()` or `Instance.PropertyArray.removeConceptReference()`.

## Parameters

Name | Type | Description
--- | --- | ---
`arr` | `PropertyArray` | A PropertyArray to clear all elements from.

## Returns

Type | Description
--- | ---
`void` |

## Cautions

none