CODEWITHSUNDEEP
arraysswift
luke
luke

Reputation: 2773

Why does sorting the array like this not work?

struct Home {
var street:String
var number:Int
}

func getHouse() -> [Home] {
var house = [Home]()

let house1 = Home(street: "Jacob Street", number: 26)
house.append(house1)

let house2 = Home(street: "High Road", number: 58)
house.append(house2)

let house3 = Home(street: "Zebra Close", number: 12)
house.append(house3)

return house
}

var houses = [Home]()
houses = getHouse()

houses.sort({$0.street < $1.street })

for i in 0..<houses.count {

print("\(houses[i].street)")
}

I'm trying to sort them alphabetically by street in this example, or possibly by number if needed. They still seem to stay in the order I've put them in rather than being in alphabetical order which i want.

Upvotes: 2

Views: 73

Answers (2)

Rob
Rob

Reputation: 437392

The sort returns a new array, but you're not doing anything with the result. You can either do

let sortedHouses = houses.sort {$0.street < $1.street }

or 

houses.sortInPlace {$0.street < $1.street }

Upvotes: 4

vadian
vadian

Reputation: 285059

You might use sortInPlace(),

sort() returns a new sorted object and leaves the receiver unchanged.

Or

let sortedHouses = houses.sort {$0.street < $1.street }

Upvotes: 2

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