---
title: components
framework: realitykit
role: symbol
role_heading: Instance Property
path: realitykit/entity/observable-swift.struct/components-swift.property
---

# components

The components an entity manages, enabling observation of their presence and values.

## Declaration

```swift
var components: Entity.Observable.Components { get set }
```

## Discussion

Discussion This property provides a direct interface to the entity’s components. When you read a component through this property’s accessor, it marks that component type as accessed for observation. Observers trigger when you modify any accessed component.