Programming in Swift: Functions & Types
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Notes: 13. Challenge: Closure Syntax
Update Notes: This course was originally recorded in 2019. It has been reviewed and all content and materials updated as of October 2021.
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It is challenge time again! You’ll find it on page 5 of the Playground for this part of the course. Pause the video, practice writing closures a few different ways, and then come back to check your work!
let copyLines😺_2🛑 =
let copyLines_2😺: (String, Int) -> Void🛑 =
let copyLines_2: (String, Int) -> Void = { (offense❌: String❌, repeatCount❌: Int❌) -> Void in
= { ❌(❌offense, repeatCount❌)❌ -> Void in
let copyLines_3:
= { offense, repeatCount❌ -> Void❌ in
let copyLines_4:
= { ❌offense, repeatCount❌ in
print( String(repeating: "I must not \(😺$0).", count: 😺$1) )
copyLines("tell lies", 5)
copyLines_2("tell lies", 5)
copyLines_3("tell lies", 5)
copyLines_4("tell lies", 5)