# clearReference()

Clears a live reference for the value passed in using property syntax. For example, if you use `aura:set` to set a value and later want to reset the value using `component.set()`, clear the reference before resetting the value.

## Signature

`clearReference(String key)`

## Parameters

***key*:** Type: `String`. The data key for which to clear the reference. For example, `"v.attributeName"`.