---
title: functionalName
framework: realitykit
role: symbol
role_heading: Instance Property
platforms: [iOS 27.0+, iPadOS 27.0+, tvOS 27.0+, visionOS 27.0+]
path: realitykit/shadergraph/nodedefinition/functionalname
---

# functionalName

The name of the functional operation this definition implements.

## Declaration

```swift
var functionalName: String { get }
```

## Discussion

Discussion Unlike name, the functional name omits type information and is shared by all definitions that implement the same operation across different types. For example, ND_atan2_float and ND_atan2_vector2 both have the functional name "atan2". Use this value with definitions(function:inputs:) to find all type variants of an operation.