## ProtectedRangeCollection class

Encapsulates a collection of [ProtectedRange](../protectedrange/) objects.

```javascript
class ProtectedRangeCollection implements Iterable<ProtectedRange>;
```


## Methods

| Method | Description |
| --- | --- |
| [get(number)](#get-number-)| Gets the [ProtectedRange](../protectedrange/) element at the specified index. |
| [add(string, number, number, number, number)](#add-string-number-number-number-number-)| Adds a [ProtectedRange](../protectedrange/) item to the collection. |
| [getCount()](#getCount--)| <b>@deprecated.</b> Please use the 'count' property instead. Gets the number of elements contained in. |
| [isNull()](#isNull--)| Checks whether the implementation object is null. |

## \[Symbol.iterator\](): Iterator\<ProtectedRange\>

Returns an iterator over the items in the collection. Enables use of `for...of`, spread syntax, and `Array.from()`.



### get(number) {#get-number-}

Gets the [ProtectedRange](../protectedrange/) element at the specified index.

```javascript
get(index: number) : ProtectedRange;
```

**Parameters:**
| Parameter | Type | Description |
| --- | --- | --- |
| index | number | The zero based index of the element. |

**Returns**

The element at the specified index.

### add(string, number, number, number, number) {#add-string-number-number-number-number-}

Adds a [ProtectedRange](../protectedrange/) item to the collection.

```javascript
add(name: string, startRow: number, startColumn: number, endRow: number, endColumn: number) : number;
```

**Parameters:**
| Parameter | Type | Description |
| --- | --- | --- |
| name | string | Range title. This is used as a descriptor, not as a named range definition. |
| startRow | number | Start row index of the range. |
| startColumn | number | Start column index of the range. |
| endRow | number | End row index of the range. |
| endColumn | number | End column index of the range. |

**Returns**

object index.

### getCount() {#getCount--}

<b>@deprecated.</b> Please use the 'count' property instead. Gets the number of elements contained in.

```javascript
getCount() : number;
```


### isNull() {#isNull--}

Checks whether the implementation object is null.

```javascript
isNull() : boolean;
```