It’s been a couple of weeks now since Swift 5 has arrived, with a bunch of features, such as: ABI stability source compatibility isMultiple – a fancy technique for checking if a number is a multiple of another number. Dictionary…
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flatMap vs compactMap
In Swift 4.1, the flatMap function was divided into two functions. One kept the same name: flatMap This method flattens a sequence. Let’s say we have a two-dimensional array: We can use the flatMap higher order function to ‘flatten’ this…
Before I forget... 
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