<!--
{
  "availability" : [
    "iOS: 27.0.0 -",
    "iPadOS: 27.0.0 -",
    "macCatalyst: 27.0.0 -",
    "macOS: 27.0.0 -",
    "tvOS: 27.0.0 -",
    "visionOS: 27.0.0 -"
  ],
  "documentType" : "symbol",
  "framework" : "USDKit",
  "identifier" : "/documentation/USDKit/USDLayer/ListOperation/setItems(_:for:)",
  "metadataVersion" : "0.1.0",
  "role" : "Instance Method",
  "symbol" : {
    "kind" : "Instance Method",
    "modules" : [
      "USDKit"
    ],
    "preciseIdentifier" : "s:6USDKit8USDLayerV13ListOperationV8setItems_3forySayxG_AC0cD4TypeOtKF"
  },
  "title" : "setItems(_:for:)"
}
-->

# setItems(_:for:)

Sets the items in the given operation’s slot.

```
mutating func setItems(_ items: [T], for operation: USDLayer.ListOperationType) throws
```

## Parameters

`items`

The new items.

`operation`

The slot to update.

## Discussion> Throws: An error if any item fails validation.

---

Copyright &copy; 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)