---
title: "setValue(_:forKey:)"
framework: scenekit
role: symbol
role_heading: Type Method
path: "scenekit/scntransaction/setvalue(_:forkey:)"
---

# setValue(_:forKey:)

Associates an arbitrary object with the current transaction using the specified key.

## Declaration

```swift
class func setValue(_ value: Any?, forKey key: String)
```

## Parameters

- `value`: An object to associate with the current transaction.
- `key`: A unique string identifying the object for later retrieval.

## Discussion

Discussion Nested transactions have nested data scope. Setting a value for a key associates it with the current transaction (or innermost nested transaction) only, and reading the value for a key searches through nested transactions (starting from the innermost).

## See Also

### Getting and Setting Transaction Properties

- [value(forKey:)](scenekit/scntransaction/value(forkey:).md)