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This tutorial belongs to the Swift seriesSuppose you have an array in Swift, like this:var items = 1...3and you want to shuffle it, so that you get its items in random order.There are 2 ways to do that in Swift.One way is mutating the original array, and it’s using the ...
swift1min read Learn, how to get the last element of a given array in Swift. Consider, we have the following array: var cars = ["Skoda", "Volvo", "BMW"]; To access the last element (BMW) from an above array, we can use the subscript syntax [ ] by passing its index. In Swift...
you will learn about the reduce code using Higher order functions like Map, Filter, Reduce, flatMap, etc… In Swift, you can use Map, Reduce and Filter to loop over collection types like array and dictionary without using a for loop. Here are some examples of the Array Functions...
15 Oct 2022 ⋅ 1 min read ⋅ Swift Array If you have an array with optional values, you can easily filter out nil elements from that array using the compactMap(_:) method. In the following example, we have an optional string array, optionalColors. You can filter nil value out of ...
Swift fundamentals You can use Array's insert(_:at:) method to insert a new element at the start, or any other arbitrary position of an Array: Take the pain out of building and testing your app’s paywalls. With RevenueCat’s all new Paywalls you can custom build and remotely configure...
In today's tutorial, you learn how to convert an array to a string in Swift. The Foundation framework defines a few APIs we can use. Which API you use largely depends on the type of the elements of the array. Let's get started....
How do you stay current as a Swift developer? Let me do the hard work and join 20,362 developers that stay up to date using my weekly newsletter: Using rethrows to wrap errors Another common use case is to wrap other errors into a locally defined error type. In the following example...
Swift fundamentals When you have an Array of elements, and you want to drop all elements that don't match specific criteria from the Array, you're looking for Array'sfilter(isIncluded:)method. Let's say you have an array of words and you only want to keep the words that are longer ...
How to create a typealias? It is declared using the keyword typealias as: typealias name = existing type In Swift, you can use typealias for most types. They can be either: Built-in types (for.eg: String, Int) User-defined types (for.e.g: class, struct, enum) Complex types (for...