unionItems

unionItems(Type): Array<Type>

Returns an array of all the types that define a given Union type. This function fails if the input is not a Union type.

Introduced in DataWeave 2.3.0. Supported by Mule 4.3 and later.

Name	Description
t	The type to check.

This example shows how unionItems behaves with different inputs.

%dw 2.0
import * from dw::core::Types
type AType = String | Number
output application/json
---
{
   a: unionItems(AType)
}DataWeave

{
  "a": ["String","Number"]
}Json