## WebExtension class

Represents an Office Add-in instance.

```javascript
class WebExtension;
```


## Properties

| Property | Type | Description |
| --- | --- | --- |
| [id](#id--)| string | Gets and sets the uniquely identifies the Office Add-in instance in the current document. |
| [isFrozen](#isFrozen--)| boolean | Indicates whether the user can interact with the Office Add-in or not. |
| [reference](#reference--)| WebExtensionReference | Readonly. Get the primary reference to an Office Add-in. |
| [alterReferences](#alterReferences--)| WebExtensionReferenceCollection | Readonly. Gets a list of alter references. |
| [properties](#properties--)| WebExtensionPropertyCollection | Readonly. Gets all properties of web extension. |
| [bindings](#bindings--)| WebExtensionBindingCollection | Readonly. Gets all bindings relationship between an Office Add-in and the data in the document. |


### id {#id--}

Gets and sets the uniquely identifies the Office Add-in instance in the current document.

```javascript
id : string;
```


### isFrozen {#isFrozen--}

Indicates whether the user can interact with the Office Add-in or not.

```javascript
isFrozen : boolean;
```


### reference {#reference--}

Readonly. Get the primary reference to an Office Add-in.

```javascript
reference : WebExtensionReference;
```


### alterReferences {#alterReferences--}

Readonly. Gets a list of alter references.

```javascript
alterReferences : WebExtensionReferenceCollection;
```


### properties {#properties--}

Readonly. Gets all properties of web extension.

```javascript
properties : WebExtensionPropertyCollection;
```


### bindings {#bindings--}

Readonly. Gets all bindings relationship between an Office Add-in and the data in the document.

```javascript
bindings : WebExtensionBindingCollection;
```