https://github.com/tailec/CombineExamples

Getting started with Apple Combine
https://github.com/tailec/CombineExamples

combine reactive reactive-programming swift

Last synced: 13 days ago
JSON representation

Getting started with Apple Combine

• Host: GitHub
• URL: https://github.com/tailec/CombineExamples
• Owner: tailec
• Created: 2019-06-20T12:17:59.000Z (over 5 years ago)
• Default Branch: master
• Last Pushed: 2022-09-10T13:33:43.000Z (about 2 years ago)
• Last Synced: 2024-01-25T03:16:04.512Z (10 months ago)
• Topics: combine, reactive, reactive-programming, swift
• Language: Swift
• Size: 521 KB
• Stars: 167
• Watchers: 4
• Forks: 14
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

Awesome Lists containing this project

• awesome-combine - Combine Examples

README

        
CombineExamples


WIP




👷 🧱 🧰 🛠️





Getting started with Combine





 A collection of simple examples using Apple Combine reactive framework






















Built with ❤︎ by

Pawel Krawiec











## Examples



LOGIN SCREEN


Simple user login validation


```swift

let credentials = Publishers

    .CombineLatest($username, $password) { ($0, $1) }

    .share()

credentials

    .map { uname, pass in

        uname.count >= 4 && pass.count >= 4

    }

    .prepend(false) // initial state

    .assign(to: \.isEnabled, on: loginButton)

    .cancelled(by: cancellableBag)

    // More in the example...

```






TIMER


Simplified stopwatch


```swift

Timer.publish(every: 0.1, on: .main, in: .default)

    .autoconnect()

    .scan(0, { (acc, _ ) in return acc + 1 })

    .map { $0.timeInterval }

    .replaceError(with: "")

    .eraseToAnyPublisher()

    .assign(to: \.currentTime, on: self)

    .cancelled(by: cancellableBag)

    // More in the example...

```






SEARCH


Browsing GitHub repositories


```swift

$query

    .throttle(for: 0.5, 

        scheduler: .main, 

           latest: true)

    .removeDuplicates()

    .map { query in

        return API().search(with: query)

            .retry(3)

            .eraseToAnyPublisher()

    }

    // More in the example...

```






AVAILABILITY


Check if your repository name is already taken


```swift

 $text

    .throttle(for: 0.5, scheduler: .main, latest: true)

    .map { text in

        API().search(with: text)

            .map { isAvailable in

                isAvailable ? "Name available" : "Name already taken"

            }

            .prepend("Checking...")

    }

    .switchToLatest()

    // More in the example...

```




Stay tuned. More examples coming.


## Licence

MIT.

The Apple logo and the Combine framework are property of Apple Inc.