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puente100.bsky.social
Daniel
@puente100.bsky.social
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puente100.bsky.social
🔗 Swift Closures: Clean & Dynamic! 🔗

Pass logic to functions for ultimate flexibility! Closures make code reusable, readable, and perfect for async tasks like networking.

What’s your favorite use? 🚀
Here’s an explanation of the example: func perform(_ closure: (String) -> Void) { closure("Swift is amazing!") } perform { print($0) } Breakdown 1. Defining the Function: • perform(_ closure: (String) -> Void): • The function perform accepts a closure as a parameter. • The closure takes a String as input and doesn’t return a value (Void). 2. What the Function Does: • Inside perform, the closure is called with the argument "Swift is amazing!". • This means whatever logic is passed as the closure will receive the string "Swift is amazing!" as input. 3. Calling the Function: • perform { print($0) }: • When calling perform, a closure is provided: { print($0) }. • $0 is shorthand for the first argument in the closure, which in this case is "Swift is amazing!". • The closure simply prints the received string. 4. Output: • The closure runs, printing: Swift is amazing! Key Points: • Closures let you pass custom logic (print($0) in this case) into functions. • This makes your function reusable and dynamic since the logic can change depending on the closure provided.
December 10, 2024 at 9:08 PM