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withMaxSize

withMaxSize(String, Number): String

Checks that the string length is no larger than the specified maxLength. If the string’s length is larger than the maxLength, the function cuts characters from left to right, until the string length meets the length limit.

Introduced in DataWeave 2.3.0. Supported by Mule 4.3 and later.

Parameters

Name Description

text

The input string.

maxLength

The maximum length of the string.

Example

This example shows how withMaxSize behaves with different inputs and sizes. Note that if withMaxSize is 0, the function returns an empty string. If the input is null, the output is always null.

Source

%dw 2.0
import withMaxSize from dw::core::Strings
output application/json
---
{
   a: "123" withMaxSize 10,
   b: "123" withMaxSize 3,
   c: "123" withMaxSize 2,
   d: "" withMaxSize 0,
   e: null withMaxSize 23,
}

Output

{
  "a": "123",
  "b": "123",
  "c": "12",
  "d": "",
  "e": null
}

withMaxSize(Null, Number): Null

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

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