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# Resource: Items

# Type: WixDataAggregatePipelineStages

# Action: objectToArray

# Link: https://dev.wix.com/docs/sdk/business-solutions/data/items/wix-data-aggregate-pipeline-stages/object-to-array.md

## Description: Adds an objectToArray stage to the aggregation pipeline.

The `objectToArray()` method adds a pipeline stage that converts an object into an array of objects with key-value pairs. Each property of the object becomes an element in the new array. Each element contains that property's key and value, as well as all other properties from the original object.

For example, with a destination name of `variantInventory`, the object `{ "red": 10, "blue": 5, "green": 3 }` is transformed into the following array:

`"variantInventory": [
   { "k": "red", "v": 10 },
   { "k": "blue", "v": 5 },
   { "k": "green", "v": 3 }
]`.

## Schema:

```json
 Method: objectToArray(objectFieldName, destinationFieldName)
 Description: Adds an objectToArray stage to the aggregation pipeline.  The `objectToArray()` method adds a pipeline stage that converts an object into an array of objects with key-value pairs. Each property of the object becomes an element in the new array. Each element contains that property's key and value, as well as all other properties from the original object.  For example, with a destination name of `variantInventory`, the object `{ "red": 10, "blue": 5, "green": 3 }` is transformed into the following array:  `"variantInventory": [    { "k": "red", "v": 10 },    { "k": "blue", "v": 5 },    { "k": "green", "v": 3 } ]`.
 Method parameters:
   param name:  objectFieldName | type: string | description:  Field to convert to an array. Use dot notation to specify nested fields. For example, `user.name` or `product.price`.  Learn more about [field keys](https://support.wix.com/en/article/cms-formerly-content-manager-about-your-collection-fields#field-id-velo-by-wix-only). 
   param name:  destinationFieldName | type: string | description:  Field to create in the result item.  Learn more about [field keys](https://support.wix.com/en/article/cms-formerly-content-manager-about-your-collection-fields#field-id-velo-by-wix-only). 
 Return type: REFERENCE<ObjectToArrayStage>

```