How to append object multiple time to an array

Question

I want to append all of my object in a single line. I have some object like this:

let abaddon = Hero(name: "abaddon")
let ember = Hero(name: "ember")
let gondar = Hero(name: "gondar")
let kael = Hero(name: "kael")
let kunkka = Hero(name: "kunkka")
let layana = Hero(name: "layana")
let lucifer = Hero(name: "lucifer")
let omni = Hero(name: "omni")
let soul = Hero(name: "soul")
let wind = Hero(name: "wind")

The Hero Object like so:

class Hero {

    var name: String!
    var image: UIImage? {
        return UIImage(named: "\(name)")!
    }

    required init(name: String) {
        self.name = name
    }
}

And I want to put them to this array: var heroes = [Hero]()

But I see append only be able to put one object each time.

heroes.append(abaddon)

How to append multiple objects in single line, something like this:

heroes.append([abaddon, ember, gondar])

Any helps would be appreciated, thanks.

Ethan Allen · Accepted Answer · 2021-02-24 23:18:53Z

31

If you want to append multiple objects, You could wrap them into an array themselves and use appendContentsOf.

heroes.append(contentsOf:[abaddon, ember, gondor])

edited Feb 24, 2021 at 23:18

Ethan Allen

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answered Mar 31, 2016 at 7:30

TPlet

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Comments

Twitter khuong291 · Accepted Answer · 2016-03-31 06:37:33Z

7

I try like this:

let heroes = ["abaddon","ember","gondar",etc].map { Hero(name: $0) }

So I don't need to declare all objects

answered Mar 31, 2016 at 6:37

Twitter khuong291

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3 Comments

Nicolas Miari Over a year ago

This is smart. You declare the array of names first, then create an array that contains one new instance of Hero for each name on the list.

BallpointBen Over a year ago

If the initializer ever requires more than just a single argument, this will get very messy.

Twitter khuong291 Over a year ago

Yes, if Hero object has more properties, this solution is not convenient anymore.

Abdul Karim · Accepted Answer · 2020-03-01 07:24:22Z

2

Swift 4.x answer of @TPlet

nameField.append(contentsOf: [abaddon, ember, gondor])

answered Mar 1, 2020 at 7:24

Abdul Karim

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Comments

BallpointBen · Accepted Answer · 2016-03-31 06:39:36Z

1

Why not just

var heroes = [abaddon, ember, ..., wind]

answered Mar 31, 2016 at 6:39

BallpointBen

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3 Comments

Nicolas Miari Over a year ago

Because he needs objects of type Hero, that likely hold other additional properties/state besides name; and array of strings won't do.

BallpointBen Over a year ago

They aren't strings (no quotes around them), they are the actual variable names.

Nicolas Miari Over a year ago

My bad, missed that.

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