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startsWith

DataWeave 2.1 is compatible with Mule 4.1. Standard Support for Mule 4.1 ended on November 2, 2020, and this version of Mule will reach its End of Life on November 2, 2022, when Extended Support ends.

Deployments of new applications to CloudHub that use this version of Mule are no longer allowed. Only in-place updates to applications are permitted.

MuleSoft recommends that you upgrade to the latest version of Mule 4 that is in Standard Support so that your applications run with the latest fixes and security enhancements.

startsWith(String, String): Boolean

Returns true or false depending on whether the input string starts with a matching prefix.

Parameters

Name Description

text

The input string.

prefix

A string that identifies the prefix.

Example

This example indicates whether the strings start with a given prefix. Note that you can also use the startsWith(text,prefix) notation (for example, startsWith("Mariano","Mar")).

Source

%dw 2.0
output application/json
---
{
  "yes" : "Mariano" startsWith "Mar",
  "no" : "Mariano" startsWith "Em"
}

Output

{
  "yes": true,
  "no": false
}