# collapseLeft method

Information noteSTABLE.   
  
This API is reliable and breaking changes are unlikely.

backendApi.collapseLeft(qRow, qCol, qAll)

Collapse the left dimensions of a pivot table. Only works for hypercubes with qMode = P which are not always fully expanded.

## Version history

Version history

| Version state | Details |
| --- | --- |
| Introduced | 2.0 |

## Parameters

### qRow

Type: Number

Row index.

### qCol

Type: Number

Column index.

### qAll

Type: Boolean

Optional.

If set to true, qRow and qCol are ignored and all cells are collapsed.

## Returns

A promise of a Qlik associative engine reply.

Tip noteFor more information regarding a promise, see [The Promise API](https://code.angularjs.org/1.5.8/docs/api/ng/service/$q#the-promise-api).

## Examples

Example:

```
this.backendApi.collapseLeft( 0, 0, true );
```