---
title: "environment(_:)"
framework: swiftui
role: symbol
role_heading: Instance Method
path: "swiftui/view/environment(_:)"
---

# environment(_:)

Places an observable object in the view’s environment.

## Declaration

```swift
nonisolated func environment<T>(_ object: T?) -> some View where T : AnyObject, T : Observable

```

## Parameters

- `object`: The object to set for this object’s type in the environment, or nil to clear an object of this type from the environment.

## Return Value

Return Value A view that has the specified object in its environment.

## Discussion

Discussion Use this modifier to place an object that you declare with the Observable() macro into a view’s environment. For example, you can add an instance of a custom observable Profile class to the environment of a ContentView: @Observable class Profile { ... }

struct RootView: View {     @State private var currentProfile: Profile?

var body: some View {         ContentView()             .environment(currentProfile)     } } You then read the object inside ContentView or one of its descendants using the Environment property wrapper: struct ContentView: View {     @Environment(Profile.self) private var currentProfile: Profile

var body: some View { ... } } This modifier affects the given view, as well as that view’s descendant views. It has no effect outside the view hierarchy on which you call it. The environment of a given view hierarchy holds only one observable object of a given type. note: This modifier takes an object that conforms to the Observable protocol. To add environment objects that conform to the ObservableObject protocol, use environmentObject(_:) instead.

## See Also

### Modifying the environment of a view

- [environment(_:_:)](swiftui/view/environment(_:_:).md)
- [transformEnvironment(_:transform:)](swiftui/view/transformenvironment(_:transform:).md)