# Programming in Swift: Functions & Types

Jan 4 2022 Swift 5.5, iOS 15, Xcode 13

## Part 4: Properties & Methods

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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’s time for some practice with properties. Again, everything you need is in the playground for this part of the course. Pause the video, and write some code to complete the exercises. Then, keep watching to compare your code with my solutions. Time to pause the video; have at it!

``````struct Temperature {
var degreesF: Double
var degreesC: Double
}
``````
``````38 var degreesF: Double

var degreesC: Double {
get { return (degreesF - 32) / 1.8 }
}
``````
``````42 set { degreesF = newValue * 1.8 + 32 }
``````
``````46 var temperature = Temperature(degreesF: 32)
temperature.degreesC
``````
``````39     didSet {
if degreesF > 100 {

}
}
``````
``````41 print("It's \(degreesF) degrees Fahrenheit! I had fun coding in Swift with you before I melted.")
``````
``````temperature.degreesC😺 = 75
``````
``````func monthsUntilJingleBells(from month: Month) -> Int {
Month.december.rawValue - month.rawValue
}
``````
``````😺var🛑 monthsUntilJingleBells(from month: Month) -> Int {
``````
``````var monthsUntilJingleBells😺: 🛑Int {
``````
``````Month.december.rawValue - ❌month.❌rawValue
``````
``````  😺var season: Season🛑 {
``````
``````    switch 😺self🛑 {
``````
``````Month.august.monthsUntilJingleBells
Month.august.season
``````