---
title: "subscript(dynamicMember:)"
framework: swiftui
role: symbol
role_heading: Instance Subscript
path: "swiftui/observedobject/wrapper/subscript(dynamicmember:)"
---

# subscript(dynamicMember:)

Gets a binding to the value of a specified key path.

## Declaration

```swift
@MainActor @preconcurrency subscript<Subject>(dynamicMember keyPath: ReferenceWritableKeyPath<ObjectType, Subject>) -> Binding<Subject> { get }
```

## Parameters

- `keyPath`: A key path to a specific value.

## Return Value

Return Value A new binding.