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underscore(String): String

Replaces hyphens, spaces, and camel-casing in a string with underscores.

If no hyphens, spaces, and camel-casing are present, the output will match the input.


Name Description


The input string.


This example replaces the hyphens and spaces in the input. Notice that the input "customer" is not modified in the output.


%dw 2.0
import * from dw::core::Strings
output application/json
   "a" : underscore("customer"),
   "b" : underscore("customer-first-name"),
   "c" : underscore("customer NAME"),
   "d" : underscore("customerName")


   "a": "customer",
   "b": "customer_first_name",
   "c": "customer_name",
   "d": "customer_name"

underscore(Null): Null

Helper function that allows underscore to work with null values.

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