CombineExamples

WIP

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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

letcredentials=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

Timer.publish(every:0.1, on:.main, in:.default).autoconnect().scan(0,{(acc, _ )inreturn acc +1}).map{ $0.timeInterval }.replaceError(with:"").eraseToAnyPublisher().assign(to: \.currentTime, on:self).cancelled(by: cancellableBag)
// More in the example...

SEARCH

Browsing GitHub repositories

$query
.throttle(for:0.5, scheduler:.main, latest:true).removeDuplicates().map{ query inreturnAPI().search(with: query).retry(3).eraseToAnyPublisher()}
// More in the example...

AVAILABILITY

Check if your repository name is already taken

 $text
.throttle(for:0.5, scheduler:.main, latest:true).map{ text inAPI().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.