DataWeave 2.1 is compatible with Mule 4.1. Standard Support for Mule 4.1 ended on November 2, 2020, and this version of Mule will reach its End of Life on November 2, 2022, 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.

trim(String): String

Removes any blank spaces from the beginning and ending of a string.


Name Description


The string from which to remove any blank spaces.


This example trims a string.


%dw 2.0
output application/json
  "trim": trim("   my long text     ")


  "trim": "my long text"

trim(Null): Null

Helper function that allows trim to work with null values.

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