UPGRADE YOUR SKILLS: Learn advanced Swift and SwiftUI on Hacking with Swift+! >>

Referring to the current instance

Inside methods you get a special constant called self, which points to whatever instance of the struct is currently being used. This self value is particularly useful when you create initializers that have the same parameter names as your property.

For example, if you create a Person struct with a name property, then tried to write an initializer that accepted a name parameter, self helps you distinguish between the property and the parameter – self.name refers to the property, whereas name refers to the parameter.

Here’s that in code:

struct Person {
    var name: String

    init(name: String) {
        print("\(name) was born!")
        self.name = name
    }
}
Hacking with Swift is sponsored by RevenueCat

SPONSORED Take the pain out of configuring and testing your paywalls. RevenueCat's Paywalls allow you to remotely configure your entire paywall view without any code changes or app updates.

Learn more here

Sponsor Hacking with Swift and reach the world's largest Swift community!

BUY OUR BOOKS
Buy Pro Swift Buy Pro SwiftUI Buy Swift Design Patterns Buy Testing Swift Buy Hacking with iOS Buy Swift Coding Challenges Buy Swift on Sundays Volume One Buy Server-Side Swift Buy Advanced iOS Volume One Buy Advanced iOS Volume Two Buy Advanced iOS Volume Three Buy Hacking with watchOS Buy Hacking with tvOS Buy Hacking with macOS Buy Dive Into SpriteKit Buy Swift in Sixty Seconds Buy Objective-C for Swift Developers Buy Beyond Code

Was this page useful? Let us know!

 
Unknown user

You are not logged in

Log in or create account
 

Link copied to your pasteboard.