Nil-Coalescing Operator Don’t be confused by the “??”—we’re not asking a question here. Today, we’re going to study the ?? operator. This is a super common operator that many developers use without knowing its official name. But even a mere operator deserves to be called by its true name so that it can “bloom” into […]
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Optional Unwrapping: Optional Binding (if let vs guard let) In this post, we will dive into Optional Binding in Swift, a crucial concept when developing iOS apps. Optional Binding allows you to safely unwrap optionals, unlike forced unwrapping, which can lead to runtime crashes. Let’s break it down and see how it works in Swift.
Optional Unwrapping: Optional Binding (if let vs guard let) Read More »
Hello! Today, we’ll learn about Optional Unwrapping in Swift. Specifically, we’ll focus on Forced Unwrapping, which is one way to unwrap optionals. 1. What is Optional Unwrapping? First, let’s review Optionals. In Swift, an Optional type is used to indicate that a variable might have no value (nil). An optional wraps a value, meaning the
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1. What is an Optional? What exactly is an optional? Is it something optional? Confusing, right? If you’ve ever worked with Swift, you’ve probably seen something like this ? symbol pop up frequently. That question mark that appears after a variable type is what makes it an optional. Let’s define it: An optional is used
