First Function - microsoft/MIMWAL GitHub Wiki
Syntax
object First(values:[list or object])
Description
Returns the first value in a list.
Remarks
If the input parameter is null, the function returns a null value. If the input parameter is a single object, the single object is returned.
Supported Version
1.0.0.0 and later
Examples
First(SortList([//WorkflowData/IDs]))