---
title: index
framework: Compute Graph
role: symbol
role_heading: Instance Property
platforms: [iOS 27.0+, iPadOS 27.0+, Mac Catalyst 27.0+, macOS 27.0+, tvOS 27.0+, visionOS 27.0+]
path: computegraph/computenodegraph/port/address/index
---

# index

The index of the port within the node’s input or output list.

## Declaration

```swift
var index: Int
```