Swift

In Swift, there is no do…while loop that is common in other programming languages. Instead, there is a repeat…while loop that does the exact same thing. Here’s an example piece of code that uses this looping construct to run through some numbers: Output: The repeat block is always executed at least once no matter what. […]

In Swift, you can add multiple init methods to a class by writing a convenience init method in an extension. For example, let’s create a Fruit class and add a second init method to it: Now you can use either one of the init methods. The Swift compiler determines which one to use based on

In Swift, properties are either stored properties or computed properties. Getters and setters in Swift are the methods a computed property uses to either set or get a value on demand. Syntactically, accessing a computed property looks the same as accessing a stored property. For instance, let’s access the computed property kilos of a weight instance: The point is that it runs a

You may be familiar with Swift operators, such as the + or – operators for adding and subtracting numbers. But did you know you can create completely new operators with customized meanings? For example, let’s create a completely new square root operator that works with the check mark emoji. This is a comprehensive guide that

In Swift, the forEach function is used to perform an operation for each element in an array. For example, let’s print out an array of names using the forEach function: Output: In this guide, you learn how to use the forEach function to iterate over collections and ranges in Swift. ForEach Function in Swift In

Do you want to become the next top-notch iOS developer and write epic apps? Look no further! In this post, you will find the best iOS app development and Swift courses. Whether you’re just getting started or already have some background in Swift, there’s definitely something for you on this list! Let’s jump into it!

Autoclosures in Swift In Swift, an autoclosure offers a way to write cleaner code by leaving curly braces out. To create an autoclosure, use the @autoclosure modifier in front of the closure type. An autoclosure itself does not accept any arguments. When an autoclosure is called, it simply returns the value of the expression returned by

Here’s a list of 50 Swift interview questions and answers. These questions focus on Swift programming and iOS app development. You need to know the answers to these before you get a chance to show your skills in front of a job interviewer. Also, feel free to use these Swift interview questions to practice for an exam.

In Swift, the map() function can be used to apply a function for each element in a collection. For example, let’s square an array of numbers: Output: Here is an illustration of how the above code works: In this guide, you learn how to use the map() function with closures on different collection types in

In Swift, Codable is a combination of Encodable and Decodable. Read my complete guide to JSON in case you’re unfamiliar with JSON. Practically every iOS app handles JSON data in one way or another. Thus, learning how to encode and decode JSON is necessary. Here is a quick example of how to: Output: If you