## WebExtensionBindingCollection class

Represents the list of binding relationships between an Office Add-in and the data in the document.

```js
new WebExtensionBindingCollection()
```

## Methods

| Name | Description |
| --- | --- |
| [add()](#add) | Adds an a binding relationship between an Office Add-in and the data in the document. |
| [add()](#add-1) | Reserved for internal use. |
| [clear()](#clear) |  |
| [contains()](#contains) | Reserved for internal use. |
| [get(index)](#get) | Gets web extension binding relationship by the specific index. |
| [get()](#get-1) | Reserved for internal use. |
| [getCount()](#getcount) |  |
| [indexOf()](#indexof) | Reserved for internal use. |
| [iterator()](#iterator) |  |
| [removeAt()](#removeat) |  |

### add() {#add}

Adds an a binding relationship between an Office Add-in and the data in the document.

**Returns:** Number — `Number`

### add() {#add-1}

Reserved for internal use.

### clear() {#clear}

### contains() {#contains}

Reserved for internal use.

### get(index) {#get}

Gets web extension binding relationship by the specific index.

| Parameter | Type | Description |
| --- | --- | --- |
| index | Number | The index. |

**Returns:** WebExtensionBinding — `WebExtensionBinding` The web extension binding relationship

### get() {#get-1}

Reserved for internal use.

### getCount() {#getcount}

### indexOf() {#indexof}

Reserved for internal use.

### iterator() {#iterator}

### removeAt() {#removeat}