Programming in Swift: Fundamentals

Oct 19 2021 Swift 5.5, iOS 15, Xcode 13

Part 5: Functions & Named Types

38. Structures

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Previous episode: 37. Challenge: Functions Next episode: 39. Challenge: Structures

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Update Notes: The student materials have been reviewed and are updated as of October 2021.

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In this exercise, we’ll begin our tour of structures in Swift. You’ll usually hear them called “Structs”.

struct Student {
  
}
let name: String
var grade: Int
var pet: String?
Student
Student(name: "Chris", grade: 49, pet: "Mango")
let chris = ...
let sam = Student(name: "Sam", grade: 99, pet: nil)
let catie = Student(name: "Catie", grade: 75, pet: "Ozma")
func getPassStatus(
func getPassStatus(lowestPass: Int = 50) -> Bool {
  grade >= lowestPass
}
func getPassStatus(lowestPass: Int = 50) -> Bool {
  grade >= lowestPass
}
func getPassStatus(lowestPass: Int = 50) -> Bool {
  grade >= lowestPass
}
chris.
chris.getPassStatus()
func earnExtraCredit() {
  grade += 10
}
mutating func earnExtraCredit...
chris.earnExtraCredit()
var chris = Student...
chris.getPassStatus()
let evilCatie
let evilCatie = catie
evilCatie.grade = 100
evilCatie.pet = "Mustachioed Ozma"
var evilCatie = catie
catie
evilCatie