underscore

underscore(text: 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.

Parameters

Name Description

Name	Description
`text`	The input string.

text

The input string.

Example

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

Source

%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")
}DataWeave

Output

{
   "a": "customer",
   "b": "customer_first_name",
   "c": "customer_name",
   "d": "customer_name"
}JSON

underscore(text: Null): Null

Helper function that enables underscore to work with a null value.