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# callAsFunction()

Dismisses the view if it is currently presented.

```
@MainActor @preconcurrency func callAsFunction()
```

## Discussion

Don’t call this method directly. SwiftUI calls it for you when you
call the [`DismissAction`](/documentation/SwiftUI/DismissAction) structure that you get from the
[`Environment`](/documentation/SwiftUI/Environment):

```
private struct SheetContents: View {
    @Environment(\.dismiss) private var dismiss

    var body: some View {
        Button("Done") {
            dismiss() // Implicitly calls dismiss.callAsFunction()
        }
    }
}
```

For information about how Swift uses the `callAsFunction()` method to
simplify call site syntax, see
[Methods with Special Names](https://docs.swift.org/swift-book/ReferenceManual/Declarations.html#ID622)
in *The Swift Programming Language*.

---

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