吉川さんにいい感じのSwiftの書き方を教えてもらった。(*´ω｀*) #love_swift #CodePiece

CodePiece.swift

//: Playground - noun: a place where people can play
 
 import UIKit
 
 
 //not good code
 var photos: [UIImage] = {
    var images = [UIImage]()
    for index in 1...8 {
        let photoName = "nature" + String(index) + ".jpg"
        let image = UIImage.init(named: photoName) ?? UIImage()
        images.append(image)
    }
    return images
 }()
 
 //better good code 
 var photos2: [UIImage] = {
    return (1...8).map {
        index -> UIImage in
        let photoName = "nature" + String(index) + ".jpg"
        let image = UIImage.init(named: photoName) ?? UIImage()
        return image
    }
 }()
 
 //very good code
 var photos3 : [UIImage] = {
    return (1...8).map {
         UIImage.init(named: "nature" + String($0) + ".jpg")!
    }
 }()