---
schema_version: "1"
id: 1513e6c188e3951b9541076bd0b3822466edc31dd33e31a11578bd065be96957
title: isBooleanType
collection: mulesoft
version: current
locale: en-us
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canonical_url: https://docs.mulesoft.com/dataweave/2.12/dw-types-functions-isbooleantype
source_site: docs.mulesoft.com
content_type: documentation
content_hash: 9a24fb2a1f898c1c956e0e2d15b2743ae8b522d2eb83d07ac338d3a64ba18036
description: MuleSoft Documentation Site
release: "2.12"
latest: false
---
---
product: DataWeave
version: 2.12
---

# isBooleanType

> For the full documentation index, see: https://docs.mulesoft.com/llms.txt

## isBooleanType(t: Type): Boolean

Returns `true` if the input is the Boolean type.

_Introduced in DataWeave version 2.3.0._

### Parameters

<table><colgroup><col> <col></colgroup><thead><tr><th>Name</th><th>Description</th></tr></thead><tbody><tr><td><p><code>t</code></p></td><td><p>The type to check.</p></td></tr></tbody></table>

### Example

This example shows how `isBooleanType` behaves with different inputs.

#### Source

```DataWeave
%dw 2.0
import * from dw::core::Types
type ABoolean = Boolean
output application/json
---
{
   a: isBooleanType(ABoolean),
   b: isBooleanType(Boolean),
   c: isBooleanType(String),
}
```

#### Output

```Json
{
  "a": true,
  "b": true,
  "c": false
}
```