Singletons and example of UIDevice.currentDevice()
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Do we really want for our types to be used in if statements
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This really great quote by Yaron Minsky made me to think about it a bit more.
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Using Swift map and filter to combine optional values.
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CoreData is nice framework, it does a lot of things automatically and there are definitely a lot of reasons to use it. But CoreData is Objective-C framework and when it comes to Swift, some things aren't so nice. One of those things is type safety.
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Common part of lots of apps is user authentication flow. When app is started, login screen is presented and user have chance to enter right username and password combination to see actual content in which he is interested.
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PNTToolbar – Safari like iOS toolbar
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Welcome to new website
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