Swift Lazy Loading

Source: Internet
Author: User

////Viewcontroller.swift//Lazy Loading////Created by Nanakon on 17/3/11.//copyright©2017 year Nanakon. All rights reserved.//Import UIKitclassViewcontroller:uiviewcontroller {//lazy loading is used only when loading multiple times with only one load//when the program starts, it creates the array that occupies the memory space.//var names: [String] = ["Why", "LMJ"]//lazy var names: [String] = ["Why", "LMJ"]lazy var names: [String]={Let names= [" Why","LMJ"] Print ("load names when using names")                returnnames} ()        //lazy var Btn:uibutton = UIButton ()lazy var Btn:uibutton={Let btn=UIButton () btn.settitle ("Button", for:. Normal)returnBTN} ()        Overridefunc viewdidload () {super.viewdidload ()}OverrideFunc Touchesbegan (_ Touches:set<uitouch>, withEvent: Uievent?) {print (names) print (BTN)}}

Swift Lazy Loading

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