---
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: join ( )
layout: subsection
---

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

Creates and returns a comma-separated string containing all elements in the set. If the set has only 1 item, the returned string contains that item without the separator. This function doesn't guarantee the order of elements in the returned string.

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

`String`

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

```
thisSet.join()
```

<b>Example</b>

`{1,2,3,4,5}.join()`

Returns `'1,2,3,4,5'`.

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

```
set:join(set)
```

<table><thead><tr><th>Parameter</th><th>Description</th></tr></thead><tbody><tr><td>set</td><td>The input Set.</td></tr></tbody></table><br/>