https://github.com/fcanas/bindbackstop

(Binding<T?>, T) -> Binding<T>
https://github.com/fcanas/bindbackstop

bindings optional optionals swift swiftui

Last synced: 10 months ago
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(Binding<T?>, T) -> Binding<T>

• Host: GitHub
• URL: https://github.com/fcanas/bindbackstop
• Owner: fcanas
• License: mit
• Created: 2021-05-02T18:25:49.000Z (almost 5 years ago)
• Default Branch: canon
• Last Pushed: 2021-10-28T01:55:57.000Z (over 4 years ago)
• Last Synced: 2025-03-29T06:02:22.694Z (11 months ago)
• Topics: bindings, optional, optionals, swift, swiftui
• Language: Swift
• Homepage:
• Size: 4.88 KB
• Stars: 3
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

          
# BindBackstop [![Build](https://github.com/fcanas/BindBackstop/actions/workflows/swift.yml/badge.svg?branch=canon)](https://github.com/fcanas/BindBackstop/actions/workflows/swift.yml)

For SwiftUI's Bindings, make a non-optional Binding from an optional one, given a default value.

This is all the code. It's only published here because I've reinvented this too many times.

```swift

extension Binding {

    init(_ source: Binding, _ defaultValue: Value) {

        self.init(get: { () -> Value in

            return source.wrappedValue ?? defaultValue

        }) { (value) in

            source.wrappedValue = value

        }

    }

}

extension Binding {

    func with(default v: T) -> Binding where Value == T? {

        return Binding(self, v)

    }

}

```

## License

BindBackstop is available under the [MIT license](LICENSE).