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isAlphanumeric(String): Boolean

Checks if the text contains only Unicode letters or digits.

Introduced in DataWeave 2.2.0. Supported by Mule 4.2 and later.


Name Description


The input string.


This example shows how isAlphanumeric behaves with different inputs and sizes.


%dw 2.0
import isAlphanumeric from dw::core::Strings
output application/json
  "a": isAlphanumeric(null),
  "b": isAlphanumeric(""),
  "c": isAlphanumeric("  "),
  "d": isAlphanumeric("abc"),
  "e": isAlphanumeric("ab c"),
  "f": isAlphanumeric("ab2c"),
  "g": isAlphanumeric("ab-c")


  "a": false,
  "b": false,
  "c": false,
  "d": true,
  "e": false,
  "f": true,
  "g": false

isAlphanumeric(Null): Boolean

Helper function for isAlphanumeric so it works with null value.

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