DataWeave 2.2 is compatible and bundled with Mule 4.2. Standard Support for Mule 4.2 ended on May 2, 2021, and this version of Mule will reach its End of Life on May 2, 2023, when Extended Support ends.

Deployments of new applications to CloudHub that use this version of Mule are no longer allowed. Only in-place updates to applications are permitted.

MuleSoft recommends that you upgrade to the latest version of Mule 4 that is in Standard Support so that your applications run with the latest fixes and security enhancements.

avg(Array<Number>): Number

Returns the average of numbers listed in an array.

An array that is empty or that contains a non-numeric value results in an error.


Name Description


The input array of numbers.


This example returns the average of multiple arrays.


%dw 2.0
output application/json
{ a: avg([1, 1000]), b: avg([1, 2, 3]) }


{ "a": 500.5, "b": 2.0 }

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