Copy as Markdown View as Markdown (opens in new tab) View on GitHub (opens in new tab) Open in... ChatGPT (opens in new tab) Claude (opens in new tab) Perplexity (opens in new tab) unionItems unionItems(t: 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 version 2.3.0. Parameters Name Description t The type to check. Example This example shows how unionItems behaves with different inputs. Source %dw 2.0 import * from dw::core::Types type AType = String | Number output application/json --- { a: unionItems(AType) } Output { "a": ["String","Number"] }