---
url: /process-functions/hierarchy-elementhasancestor.md
description: You can prefix with the hierarchy using ancestorName.
---

# hierarchy.elementHasAncestor

```js
hierarchy.elementHasAncestor(dimensionName, hierarchyName, elementName, ancestorName)
```

#### Parameters

* `dimensionName` - The dimension.
* `hierarchyName` - Name of Hierarchy.
* `elementName` - Child element to be tested.
* `ancestorName` - The ancestor element name

:::tip
You can prefix with the hierarchy using `ancestorName`.
:::

#### Example

```js
let value = hierarchy.elementHasAncestor("Time", "Default (Calendar)", "August", "2015");
```