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) isUnionType isUnionType(t: Type): Boolean Returns true if the input type is the Union type. Introduced in DataWeave version 2.3.0. Parameters Name Description t The type to check. Example This example shows how isUnionType behaves with different inputs. Source %dw 2.0 import * from dw::core::Types type AType = String | Number output application/json --- { a: isUnionType(AType), b: isUnionType(Boolean), } Output { "a": true, "b": false }