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  5. toNumberOrNull

toNumberOrNull

toNumberOrNull(str: String, formatters: Array<Formatter>): Number | Null

Transforms a String value into a Number value using the first Formatter that matches with the given value to transform.

If none of the Formatter matches with the given value, the function returns a null value.

Introduced in DataWeave version 2.5.0.

Parameters

Name Type Description

str

String

The String value to transform into a Number value.

formatters

Array<Formatter>

The array of formatting to use on the Number value.

Example

This example shows how toNumberOrNull behaves with different inputs. It produces output in the application/dw format.

Source

%dw 2.0
import * from dw::util::Coercions
output application/dw
---
{
  a: toNumberOrNull("0.005", [{format: "seconds"}, {format: ".00"}]),
  b: toNumberOrNull("0.005", [{format: "seconds"}])
}

Output

{
  a: 0.005 as Number {format: ".00"},
  b: null
}