---
schema_version: "1"
id: 91a1d028081a714ca5e51a5ab7e53ad379e8b2589832ea1d17ee05d4afaf24e7
title: isIntersectionType
collection: mulesoft
version: current
locale: en-us
portal_url: https://docs.salesforce.com/mulesoft/current/en-us/dataweave/2.12/dw-types-functions-isintersectiontype.md
canonical_url: https://docs.mulesoft.com/dataweave/2.12/dw-types-functions-isintersectiontype
source_site: docs.mulesoft.com
content_type: documentation
content_hash: 961a9277606a29f5a035441dedc4888cd634c75bf97e7d27df03b9488c03df19
description: MuleSoft Documentation Site
release: "2.12"
latest: false
---
---
product: DataWeave
version: 2.12
---

# isIntersectionType

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

## isIntersectionType(t: Type): Boolean

Returns `true` if the input type is the Intersection 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 `isIntersectionType` behaves with different inputs.

#### Source

```DataWeave
%dw 2.0
import * from dw::core::Types
type AType = {name: String} & {age: Number}
output application/json
---
{
   a: isIntersectionType(AType),
   b: isIntersectionType(Boolean),
}
```

#### Output

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