In DataWeave 2.0, what does the header line %dw 2.0 specify?

In DataWeave 2.0, what does the header line %dw 2.0 specify?

• A. DataWeave version 2.0
• B. Output encoding
• C. The target payload type
• D. The environment

Answer: (A)

The header line tells the engine which version of the DataWeave language to use for this script. The line %dw 2.0 specifies DataWeave version 2.0, so the transformation will be parsed and executed with DataWeave 2.0’s syntax, functions, and behavior. This choice matters because different versions have different features and rules, and using the correct version ensures compatibility with Mule 4 and the capabilities you rely on. It isn’t about output encoding, the target payload type, or the environment—those are controlled elsewhere in the script or deployment settings.

The header line tells the engine which version of the DataWeave language to use for this script. The line %dw 2.0 specifies DataWeave version 2.0, so the transformation will be parsed and executed with DataWeave 2.0’s syntax, functions, and behavior. This choice matters because different versions have different features and rules, and using the correct version ensures compatibility with Mule 4 and the capabilities you rely on. It isn’t about output encoding, the target payload type, or the environment—those are controlled elsewhere in the script or deployment settings.