---
id: fast-element.propertychangenotifier._constructor_
title: PropertyChangeNotifier.(constructor)
hide_title: true
---
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[@microsoft/fast-element](./fast-element.md) &gt; [PropertyChangeNotifier](./fast-element.propertychangenotifier.md) &gt; [(constructor)](./fast-element.propertychangenotifier._constructor_.md)

## PropertyChangeNotifier.(constructor)

Creates an instance of PropertyChangeNotifier for the specified source.

<b>Signature:</b>

```typescript
constructor(source: any);
```

## Parameters

|  Parameter | Type | Description |
|  --- | --- | --- |
|  source | any | The object source that subscribers will receive notifications from. |
