dw-strings-functions-appendifmissing.adoc

appendIfMissing

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appendIfMissing(String, String): String

Appends the suffix to the end of the text if the text does not already ends with the suffix.

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

Parameters

Name	Description
text	The input string.
suffix	The text used as the suffix.

Example

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

Source

%dw 2.0
import appendIfMissing from dw::core::Strings
output application/json
---
{
  "a": appendIfMissing(null, ""),
  "b": appendIfMissing("abc", ""),
  "c": appendIfMissing("", "xyz") ,
  "d": appendIfMissing("abc", "xyz") ,
  "e": appendIfMissing("abcxyz", "xyz")
}

Output

{
  "a": null,
  "b": "abc",
  "c": "xyz",
  "d": "abcxyz",
  "e": "abcxyz"
}

appendIfMissing(Null, String): Null

Helper function to make appendIfMissing work with null value.