Purpose
The join task is used to join all elements of an array (or an array-like object) into a string.
Potential Use Case
If you have a dataset that is within an array and you want to join this dataset into a string of information, you can do this by using the join task.
Properties
Input and output parameters are shown below.
| Incoming | Type | Description | 
|---|---|---|
| arr | Array | Required. The array that contains the elements to join. | 
| separator | String | Specifies a string to separate each pair of adjacent elements of the array. | 
| Outgoing | Type | Description | 
|---|---|---|
| joinedElements | String | A string with all array elements joined. The task will return an empty string if the length of the array is 0. | 
Example
In this example the arr variable is ["Device1","Device2","Device3","Device4"] and the separator to use is a comma (" , ").

The joinedElements variable that returns is "Device1,Device2,Device3,Device4" with all of the elements separated by a comma (" , ") within one set of double quotation marks.
