## ListColumnCollection class

Represents a list of all the [ListColumn](../listcolumn/) objects in the table.

```javascript
class ListColumnCollection implements Iterable<ListColumn>;
```


## Methods

| Method | Description |
| --- | --- |
| [get(number)](#get-number-)| Gets the ListColumn by the index. |
| [get(string)](#get-string-)| Gets the ListColumn by the name. |
| [removeAt(number)](#removeAt-number-)| Remove [ListColumn](../listcolumn/) by index. |
| [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\<ListColumn\>

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 ListColumn by the index.

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

**Parameters:**
| Parameter | Type | Description |
| --- | --- | --- |
| index | number | The index. |

**Returns**

the ListColumn object.

### get(string) {#get-string-}

Gets the ListColumn by the name.

```javascript
get(name: string) : ListColumn;
```

**Parameters:**
| Parameter | Type | Description |
| --- | --- | --- |
| name | string | The name of the ListColumn |

**Returns**

The ListColumn object.

### removeAt(number) {#removeAt-number-}

Remove [ListColumn](../listcolumn/) by index.

```javascript
removeAt(index: number) : void;
```

**Parameters:**
| Parameter | Type | Description |
| --- | --- | --- |
| index | number | The 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;
```