---
category: [Administration & Integrations, Platform and Product Extensions, Platform and Product Extensions/Integration, Administration & Integrations/Custom Integrations & Apps, Platform and Product Extensions/Workday Extend]
keyword: [Extend, PMD Scripting, Scripts]
nav: wcp_docs
parent_url: /wcp_docs/
title: lastIndexOf (element)
layout: subsection
---

## <a id="section_m3p_myb_5db"></a>Description

Returns the 0-based index of the last occurrence of the specified element in the list. Returns -1 if the list doesn't contain the element.

## <a id="section_cyq_j1m_zsb"></a>Return Type

`int`

## <a id="section_dz5_pwg_5db"></a>Instance Method Syntax

```
thisList.lastIndexOf(element)
```

<table><thead><tr><th>Parameter</th><th>Description</th></tr></thead><tbody><tr><td>element</td><td>The object element in the List.</td></tr></tbody></table><br/>

<b>Example</b>

`[1, 2, 2, 3].lastIndexOf(2)`

Returns `2`

## <a id="section_njs_xzl_zsb"></a>Namespace Function Syntax

```
list:lastIndexOf(list, element)
```

<table><thead><tr><th>Parameter</th><th>Description</th></tr></thead><tbody><tr><td>list</td><td>The input List.</td></tr><tr><td>element</td><td>The object element in the List.</td></tr></tbody></table><br/>